Butts Up P Spot Massager. Prostate and testicular stimulation. Removeable bullet. Body safe silicone. Water resistant. Phthalates free. Materials: Sleeve - Silicone, Bullet - ABS. 3 Function. Size: Width - 10?, Insertable length - 8?. Usage time = 1hr. Requires 3 LR44 (AG13) batteries (included).