High performance- strong elastic and ultra soft, give super comfortable washing experience. Fit for-skin-friendly soft silicon brush is suitable for all kinds of people especially for whom with sensitive skin. Considerate design- soft bristles work well to create a lot of bubbles, perfectly suitable for improving your skin's quality and leaving it glowing and smooth, while the back convex granule is great for massaging the scalp and body. quality material- made of quality silicone, environmental-friendly and safe, suitable for relaxing and cleaning your body. Food grade material-made of eco-friendly silicone material.the silicon material is acid resistance and can be used with soda water, essential oils.