SKU: 97704774759

Master Series Ass Vault Locking Ass Expander - Stainless

Sale price$163.79 Regular price$181.99
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Ships within 48 hours · Estimated delivery Jul 27 - Aug 1

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Description

Master Series Ass Vault Locking Ass Expander - StainlessTake anal play seriously with the Ass Vault Locking Ass Expander! Made out of durable, non porous, stainless steel, this plug is compatible with all types of lubricants and will last for years to come! For those who are kinky and love anal bondage, this is a must have! Using the flat, circular key you can expand the metal petals of the plug for a more intense backdoor fill that locks the plug in place. Once the gold pin flat key is used to officially

Take anal play seriously with the Ass Vault Locking Ass Expander! Made out of durable, non-porous, stainless steel, this plug is compatible with all types of lubricants and will last for years to come! For those who are kinky and love anal bondage, this is a must have! Using the flat, circular key you can expand the metal petals of the plug for a more intense backdoor fill that locks the plug in place. Once the gold pin flat key is used to officially lock the device, the petals won't move and your rear end will be stuck in whatever position that plug is last put in. Make sure not to lose the keys so you can release your bottom from bondage! Enjoy premium quality materials that are temperature sensitive and have a substantial weight to them that can be felt as a satisfying, constant, downward pull on the rectum. The tapered tip helps make insertion easy and the slim neck and wide base keep it safely in place without worry of it being slipped further inside. The plug can easily be cleaned by boiling it in water and cleaning solution or using isopropyl alcohol. Clean it before and after each use.

With the plug in a contracted position, use plenty of lube and slip the tip into your backdoor. For a more pleasant sensation, run warm water over the metal to warm it up before insertion. Once inside, use the circular flat key to expand the metal petals; only expand the petals to the degree that is comfortable and don't force it! As you find the desired expansion, use the gold pin locking key to keep it in place so it doesn't contract again until you let it. Make sure not to lose either key for safety reasons! Enjoy playing with your partner or even serving them and begging them to let you free after being locked into anal bondage! What will you do to earn release?

EXPANDING
1. Insert flat key into rectangular opening at base of plug.
2. Turn clockwise to close the plug.
3. Turn counter-clockwise to expand the plug.
LOCKING
1. Use the flat key to align the keyholes on the base of the plug.
2. Insert gold locking pin all the way into the keyhole.
3. Turn the key clockwise to lock.
4. Pull out the key.
UNLOCKING
1. Insert key into keyhole.
2. Turn the key counter-clockwise to unlock the gold locking pin.
3. Pull out the key with a gold locking pin.

Measurements:

Overall length: 3.4 inches. Insertable length: 2.8 inches. Plug expands from 1.5 inches to 2.2 inches in diameter.
Plug alone weighs 9.3oz (264g).

Materials: Stainless Steel

Color: Metal

Note: For safety reasons, do not misplace or lose the gold pin and locking key or the flat circular expander key.

Key Features:

  • Stainless Steel Plug: This plug is non-porous, nickel-free, durable, sleek and sexy; this serious, industrial style locking plug is for experienced kinksters who want premium quality toys!
  • Expanding Petals: With a turn of the flat circle key the petals expand or close.
  • Secure Locking Mechanism: Use the key with the gold locking pin to lock the plug in place; keep it expanded or closed to the degree you choose.
  • Tapered Tip and Slim Neck: THe tapered tip helps with insertion and the slim neck and wide base keep it safely and securely inside without concern for it going further past the sphincter.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 97704774759

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4.7 ★★★★★
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Raquel Hall
Draper, US
★★★★★ 4
Great fit but expensive
Size: Medium, Color: (252) Blush Beige / White / Castlerock
These are really great socks. I love them, but they are definitely pricey.
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Reviewed in the United States on March 30, 2026
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LacyConner
Lowell, US
★★★★★ 5
Great socks!
Size: Medium, Color: (252) Blush Beige / White / Castlerock
Love these socks so much I got a second package. I like how thin and airy they are and they never slide down my heel. For thin socks they’re pretty durable.
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Reviewed in the United States on August 16, 2025
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Cor vW
Charlottesville, US
★★★★★ 5
Great
Size: Medium, Color: (001) Black / Black / Pitch Gray
The best pair of work / workout / casual socks I've bought in long time! They're no show on all my sneakers, incredibly comfortable and they never move.
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Reviewed in the United States on October 7, 2025
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The bookish health nut
Grantham, US
★★★★★ 5
Absolutely Essential for Any Athlete or Gym-Goer!
Size: Large, Color: (035) Steel / White / Black
I recently purchased the Under Armour Unisex-Adult Training Cotton No Show Socks 6 Pack, and I must say, they've become an indispensable part of my workout gear. Here's why these socks are a game-changer: Comfort Above All: These socks are incredibly comfortable. Made from a blend of cotton and synthetic fibers, they provide just the right amount of cushioning without feeling bulky. Whether I'm running, lifting weights, or doing yoga, my feet feel supported yet free. No Show, All Go: True to their name, these socks stay perfectly in place without slipping down into my shoes. This is crucial for maintaining a professional look at the gym or during sports activities. No more embarrassing sock peeks or having to constantly adjust them. Durability: For the price, these socks hold up remarkably well. I've washed them multiple times, and they haven't lost their shape or elasticity. They've survived the rigors of both my workouts and laundry day. Breathability: The material mix allows for excellent breathability. My feet stay dry and cool, reducing the chances of blisters or discomfort during long sessions. Pack Value: Getting six pairs in one go is fantastic. It means I always have a fresh pair ready, which is perfect for someone like me who works out frequently. Fit for All: These socks fit true to size and are designed to be unisex, making them a versatile choice for anyone looking to upgrade their sock game. If you're in the market for socks that combine comfort, performance, and style, look no further. Under Armour has nailed it with these no-show socks. They've quickly become a staple in my wardrobe, and I find myself reaching for them over any other sock I own. Highly recommended for anyone serious about their fitness routine or just wanting reliable, high-quality socks. 5 out of 5 stars - These socks are a must-have!
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Reviewed in the United States on August 25, 2024
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DLynn
Cuba, US
★★★★★ 5
My Husband’s Favorite Socks
Size: Large, Color: (035) Steel / White / Black
The Under Armour Unisex Training Cotton No Show Socks have become my husband’s absolute favorite socks—and he’s pretty picky about socks. Comfortable Fit: They’re soft, comfortable, and fit well without being too tight. They stay in place all day with no slipping or bunching. Great for Everyday Wear: Perfect for workouts, walking, and everyday use. They provide just the right amount of cushioning without feeling bulky. Durable & Long-Lasting: These hold up really well through regular wear and washing. They keep their shape and don’t wear thin quickly. Reliable Under Armour Quality: You can tell they’re well made. Consistent quality that matches what you expect from Under Armour. Overall Impression: When someone has a favorite sock and keeps reaching for it, that says everything. These are comfortable, durable, and dependable.
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Reviewed in the United States on December 30, 2025

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