Features: 1. This is a pet tooth whitening pen kit-2 pens-white pen- can penetrate into the gums, remove tartar and stubborn dental stains on the teeth, soften the teeth on the calculus, make the calculus lose and fall off and blue pen-dental care formula, all-round care of oral and gums, anti-inflammatory and bacteriostasis, repair gums, strong teeth, so that teeth more bright and white luster, contains natural plant fresh oral formula, so that the mouth is fresh and natural. 2. The soft brush design is safe for pets. 3. The anti-slip design is convenient for you to operate and help you maintain healthy teeth and a happy lifestyle for your pet. 4. Small head tip for those hard to reach places. 5. It also can prevent bad breath, repair and pain relief, care of the mouth.