Function: Sex Delay RingColor: BlackOut Dia: 3.9 - 4.2 - 3.6 cm/1.5" - 1.7" - 1.4"Inner Dia: 1.9 - 2.2 - 1.9 cm/0.7" - 0.9" - 0.7"Net Weight: 21 g/0.05 lb/0.74 ozPower: NoMaterial: SiliconePackage: Color BoxFurther: WaterproofPackage Size: 12.7*2.5*21.3 CM