With an ergonomically designed grip handle, this brush is easy to hold in the shower. Even with shampoo in your hand, it still not slip from your palm and fall off. This hair scalp massager is made of ultra-soft and flexible silicone bristles, which will not scratch your scalp. It can also protect your long nails and sensitive scalp skin effectively. This shampoo brush is waterproof, which will not absorb dust and sewage when using. You can easily clean it by water and hang it anywhere.