MaterialsEco-friendly materials - ABS shell, high quality silicone brush, non-toxic, environmentally friendly, flexible, durable, deep cleaning. USB charging, this eco-friendly footer is durable and long-lasting. How to use - Add the right amount of water and cleaning solution to the footer, insert the dog’s claws, rotate them for 1-2 minutes, then pat dry. You can connect to the universal USB interface anytime, anywhere and want to charge. Charging Convenient charging operation - 1-key switch, handle design, rotary deep cleaning at 360°, more convenient, waterproof and safe bristles, silicone bristles effectively remove harmful substances from the surface of the dog’s claw and deep dirt, sand, foreign matter, etc. Easy to clean - Open the cover after use, clean, dry, detachable, simple and convenient, clean it before use.. .