This posing male underwear display bottom is made out of thick durable plastic. Underwear mannequin tush is free standing. No base needed. You can prop it up on a table, counter or store shelf to display underwear, shorts and boxers. This mannequin butt is a full round bottom. its hollow. this underwear display bottom is long lasting. Doesn't get damaged easily. Its light and easy to move around. Smooth surface makes it very easy to clean. Great for bringing to trade shows, displaying in your clothing store window or anywhere throughout your clothing shop.