Oxballs Airhole-1 Finned Buttplug Silicone Small BlackAIRHOLE plugs are squishy soft with fins that flatten down and bend for a completely different sensation the fins compress as you slide AIRHOLE in then expand and wiggle around once inserted. It has a life of its own it does its thingit moves as you move. Most plugs are usually pretty standard shapes cones egg shape maybe a fist but AIRHOLE is designed for a feel you havent felt in you before. The fins collapse as you twist it or slide it inyou get