We’re glad you asked. Our Hump Gear is the world's first butt plug that can be used for penetration. Yes, a fuckable butt plug. How does it work? Well the top puts the plug on like a cock sheath, and then slowly inserts it into the person who is receiving; making sure the large nub above the base goes all the way in. Hump Gear is made of SilaSkin which is a perfect mix of Silicone and TPR making it unbelievably stretchy, soft and soft yet strong so it contours to fit the receiver’s anatomy.