... no radiation,waterproof , 4. natural shell color 1. yellow lip MOP 2. size: Customized 3. eco-friendly,no radiation,waterproof , ... color 1. Material: penguin shell, yellow lip mop,black lip mop,white lip mop,abalone mop, OX mop, freshwater shell ,glass and stone etc 2 ... 1. Material: penguin shell, yellow lip mop,black lip mop,white lip mop,abalone mop, OX mop, freshwater shell ,glass and stone etc 2 ...