Pelvix is a product designed for the rehabilitation and strengthening of the pelvic floor. Pelvix combines the product with a treatment therapy by gradually increasing weights, which helps prevent and solve problems caused by a weak or damaged pelvic floor. Environmentally Friendly Materials Made of 100% Platinum-silicone Safety and total Comfort Interchangeable Weights Phthalate-Free, Body-Safe Hypoallergenic, Nonporous, and Odorless Waterproof Easy to Clean Total Length: 2.5 in. (6.4cm) Width/Diameter: 1.25 in. (3.2cm)