Spartacus Leather Nickel Free 2 inches Silicone Removable Ball Gag Large Red. Gags are sensory toys. When one of the senses is removed the others become heightened. This type of sensory play changes the sexual experience for everyone involved in the activity. Now you can silence even the most sensitive of submissive. 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. Never fear hazardous materials again! If you are sensitive to nickel, you know how the threat of a bad reaction can put a damper on even the sexiest action. That is why Spartacus developed products that are not only allergen free. They are worry free! Spartacus Leather A Passion for Quality. Made in the USA.