T-Rex Black Perfect for those seeking a larger than life experience, the T-Rex will bring impact tremors of excitement to your sex life. Specifically designed for use in a harness, the T-Rex is made of Tantus' own unique blend of 100% Ultra-Premium Silicone, and is available in Midnight Purple and Black. Each sold separately. Non-vibrating realistic dong measures 6 inches long by 2.25 inches wide. Flat d shaped base makes sex toy harness compatible. Made using body safe phthalate free, non-toxic materials Silicone. Always clean before and after use plus between partners. Tantus Silicone Dildo. What does it mean to make toys healthy for the body and to be a green manufacturer? Tantus takes pride in the fact that all our products are healthy for the body and made using processes that are healthy for the earth.