This vibrating double cockring with clit stimulator features 10 amazing functions. Made Silicone and ABS plastic, this toy is waterproof, phthalate free, and RoHs compliant. Measurements: Bullet: 2.25 x .75 x .5 (5.72cm x 1.91cm x 1.27cm) Sleeve: 2.25 x 1.25 x 1.5 (5.72cm x 3.18cm x 3.81cm) Inner Diameter Small Ring: 1.08 (2.74cm) Inner Diameter Large Ring: 1.34 (3.4cm)