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 Soft Silicone. Diameter: 2.25in. (For harness play youft.ll need a big O-ring)Length: 6in.