The Silent Duck or fist why have to choose? The Rebel Intruder 21.65in will give you the best of both worlds. The Intruder Hand starts small and slides its way into 6cm across the knuckles whilst the Fist is 6cm in diameter with a 4cm diameter connection shaft. Phthalate free, Non toxic, Hypoallergenic and 55cm long. Flexible and sturdy and easy to clean.