The Vibrating Super Soft C-Ring features the original best-selling Super Soft ring with a waterproof removable bullet vibrator. The Super Soft Vibe Ring is 10 mm wide and stretchier than standard Tantus C-rings, making a safe, beginner-friendly addition to couple's play that is both comfortable and exciting. Vibrator: Removable Waterproof Bullet Vibe, Uses 2 X LR44 Batteries.