Dual Vaginal & Anal HangerSwing & Spheres for Anal Hook Bondage Play - Both the quality crafted surgical steel spheres and balls are all interchangable. You can increase or decrease the size, extend it to two or more balls with varying degrees of size or change to a Ball-in-Ball for awesome vibrations as you move. Size; Curve Length; 220mm Plugs Length; 50mm Thick; 10mmAvailable in Solid Ball Sizes (SOLD SEPERATELY HERE)30, 35, 40, 45, 50, 55, 60, 65, 70, 80, 85, 90Also Available in Ben Wa Balls (SOLD SEPERATELY HERE)30mm 40mm 45mm 50mmAlso Available in Egg Balls (SOLD SEPERATELY HERE)30mm 40mm 45mm 50mm 55mmThis product is certified 100% Non-Magnate and medical-grade steel. Beware of cheaper products that are not solid surgical steel but chromed steel or poor quality surgical steel that contains Magnate. Magnate is the ingredient that makes steel rust. We will only include this endorsement on our 100% surgical steel products.