This is Dog pet toothbrush,It has two kind of package,One is 2 pcs ,Another is 4 PCS. This toothbrush have 2 styles,This link style is just small size. Clean your dogs teeth and breath - the dog toothbrush, with three flexible independent toothbrush heads, cleans your dog\'s teeth and gums in one stroke Ergonomic design - high quality dental care for dogs is ergonomically designed for easy use, even if your pet is moving around. There is also a tongue cleaner at the bottom of the handle Simple and effective - use this easy-to-use dog toothbrush to get rid of gum disease, bad breath and oral infection and keep your pet healthy.