Part ball stretcher and part ball weight, this scrotum toy is two toys in one! Simply stretch the opening on the top of the Bull Bag and gently release over your entire scrotum. Gives users the feeling of having a bigger scrotum 0.75 inch stretch. Safe with water based lubes, and not compatible with latex. Materials: PF Blend a proprietary blend of Silicone and Thermoplastic Rubber TPR