Enhance Erections & 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. Specs: Length: 5 cmWidth: 3 cmDepth: 1 cmRing: 1 cm ThickRing Hole: 2 cm x 2 cm (before stretching)Material: SiliconeFunctions: 1 speedPowered by: AG3 battery Motor (included)Motor can be purchased separatelySpecial Features: WaterproofPackage Dimensions: 11 cm l x 8.5 cm w x 1 cm dPackage Weight: 11 g