One toothbrush has 3 heads, can help your dog do a all position cleaning, better cleaning effect. Plastic material is non-toxic and durable to use, no harms to pets. Please let your dogs fit in finger brush before using this toothbrush, and please brush their teeth gently. Help your dogs remove dental plaque, prevent tartar and ozostomia, keep a good detal health. The plastic handle is anti-slip, help you hold it firmly, and the hanging hole design is very convenient to place.