Enhance Erections andamp; Increase Sexual Pleasure at the Same Time!The Vibrating E Ring is a thicker ring for a firmer hold to encourage a longer lasting erection. With two unique designs and 6 fun styles to choose from, one is right for you. Can be worn with/without a condom, are water resistant and when the vibrations run low. Product Specs: Dimensions of Ring:Length: 5cmWidth: 3cmDepth: 1cmRing: 1cm ThickRing Hole: 2cm x 2cm (before stretching)Material: SiliconeFunctions: 1 speed Powered by: AG3 battery Motor (included)Motor can be purchased separatelySpecial Features: WaterproofPackage Dimensions: 11cm l x 8.5cm w x 1cm dPackage Weight: 11g