Atomic Tackle Hair Extender Stops Clear are designed to securely attach a bait to a hair rig and prevent it from slipping off, even on the longest cast. They are ideal if you want to change the mechanics of your rig by changing the size or shape of your bait without having to tie a new rig. They also prevent nuisance fish disrupting your bait. - Each pack contains two racks with three different extender stop sizes: small, medium and large.