The most practical and most effective cock ring that packs a truly heroic punch with every pump!- 10 Function- Get hard stay hard- Clit pleasing nubs- Super stretchy- Push button control- Waterproof- Phthalates free- RoHS compliant- Material: BulletABS CockringSEBS- 3 LR44 (AG13) Batteries included- Length: 2.5, Diameter: 2.25