The Macho Stallions Vibrating Cock Ring (Black)Get hard, stay hard! Enjoy powerful erections and super orgasms with the clit pleasing nubs and powerful vibrations. Super stretchy means one size fits all. Features an EZ on/off switch and Phthalates free material.Material: SEBS. 1 AG5 battery. Height: 2in.. Width: 1.5in..