From Sportsheets Sexperiments line Golden Opportunities Kit. A great gift for him. Butt knuckles, prostate or vaginal stimulation tool with attachable gold bullet vibe, nipple clip with attachable cock ring strap. Golden Mini vibe can also be used alone.Golden Opportunities Sexperiments kit contains: Prostate stimulation toy with vibrator sleeve. A Golden Bullet Vibe, 1 pair of nipple clips with attachable cock ring strap. Materials: silicone, nickel free metal, polyurethane PU fabric, ABS plastic, PVC. Vibrator requires AG13 batteries.