Rimba Bondage Play divisible ball stretcher or cock ring made of stainless steel. The Allen key is included. This ring is available in 3 different heights: ref. # 7380=170 grams Hight 15 mm. Material 10 mm. Inside opening 32-35 mm.ref. # 7381=270 grams Hight 25 mm. Material 10 mm. Inside opening 32-35 mm. ref. # 7383=440 grams Hight 40 mm. Material 10 mm. Inside opening 32-35 mm.