...They tie a rope to the hook and start to bind your chest. As they pull the rope, you feel it inside you; the plug gets pulled and presses harder... Expand and explore the kinkier side of anal play with this set of 3 aluminum alloy plugs from Master Series. Each of the plugs are lightweight and tapered for easy insertion and super smooth so that they glide in effortlessly when a little lube is added. Screw any of the plugs to the stainless steel hook and insert. The hook has an O-ring at the top which can be used to tie rope to. Use the rope to secure the plug in place while binding your partner in a sexy or compromising position! With every movement, they will feel the pull of the plug and will be forced to keep their position! If you like predicament bondage, this toy is for you! All metal is nickel-free for sensitive skin. The metal is non-porous and can be used with any lubricant.