Pelvic Floor Exercise Set: Set includes 5 kegel balls in varying weights for progressive resistance training to strengthen pelvic floor muscles. Effective prevention and treatment of postpartum relaxation, sagging, and urinary leakage, repair of pelvic muscle tightening force, and enhancement of bladder control.Silicone material: Smooth and body safe silicone wraps around stainless steel balls of different weights, which can be freely replaced and combined into different weights. Waterproof, easy to clean, comfortable to use, and hygienic.Discreet Design: Ergonomic retrieval cords allow for easy insertion and removal, while the sleek design ensures discretion.Compact storage: Comes with a free bag. Provide convenient private storage for easy portability when not in use.Sizing:Free to split and combine, Each sphere has a diameter of 1.18 inch, and different spheres can be combined to form a weights of 0.1-0.26 lbs, which is very suitable for beginner or advanced.