Nipple Play Non-Piercing Nipple Jewelry Onyx. Includes 2 fully adjustable nipple adornments. Soft and comfortable cinch design. Non-piercing. non-tarnishing. nickel free body jewelry. Safe and pure for body and pleasure made using phthalate free materials Nickel free iron chain. beads. Silicone loops. Crystal jewels. 2.25 inches each loop. 4.5 inches overall length. Bulk weight 0.5 ounce.