Our tooth cleaning sponge is made of nano-mica cotton and polypropylene. It can deeply clean the stains on the tooth surface. It effectively removes stubborn stains， such as coffee and tea stains， and restores white teeth. The usage method is very simple: 1. Soak the sponge in water， then gently wipe the dirt on the tooth surface， and rinse your mouth; 2. Please wipe the sides first， then use it; 3. The gaps between teeth and the rough surfaces of the tooth sides cannot be cleaned with this sponge; do not use the narrow edge of the sponge to wipe the tooth surface， and it is not suitable for dentures. Deep cleaning， removing stubborn stains. The grip is comfortable and the operation is convenient.