Small - MediumBreath-Less Fizzy Plaque Zapper is an effective way to help your pet stay dentally healthy. Fizzy Plaque Zapper, patented by Ark Naturals contains naturally occurring enzymes that help restore salivas natural balance. Saliva ph is one of the culprits that fosters the growth of harmful oral bacteria. Empty one packet each day in your pets drinking water. Absolutely odorless, colorless and tasteless Isnt it Time Your Pets Care for Their Own Teeth? Just Pour One Packet in Pets Water Bowl Daily!Now pet lovers can kiss their pets without the stinky slobber! BREATH-LESS Plaque-Zapper patent pending is a hassle-free way pet guardians can help their pets, as part of their pets home health program have healthy teeth and gums. Plaque-Zapper in your pets" drinking water, helps neutralize the ph level of saliva. Using Plaque-Zapper on a regular basis as part of a regular home care program helps to deter the growth of oral bacteria. Simply pour one packet of Plaque-Zapper into the pets drinking water daily.. Each diluted packet is effective for up to 8 hours. Totally odorless, colorless, tasteless, pets will not even notice the difference in their drinking water! Fizzy Plaque Zapper formulated by vets, is one of the easiest ways to help your pets stay dentally healthy. Best of all, pet parents do not have to train pets to drink on command since it is placed directly in the pets water.