Fifty Shades of Grey Silicone and metal pelvic floor balls let you experience intense sensations. It can be used alone or with a partner and for effective pelvic floor training. It comes with four balls which, due to their different weights (15-55g), let you control the intensity. The balls are attached to a silicone cord so they are easy to pull out. Use them with water-based lube for the best experienceInformationBrand: Fifty Shades of GreyType: Pelvic floor ballsMaterial: Silicone & metal