Spartacus Silicone Removable Ball Gag 2 inches Swirl Now you can silence even the most sensitive of submissives; these hot new Spartacus ball gags are 100% allergen free! They feature a rubber free silicone gag and nickel free hardware, as well as a removable, washable strap attaching the ball to the leather head strap. Silicone Gag. Leather Strap. Nickel-Free. Adjustable.