Advantage - Small Dogs 0 to 4kg (Green) 4pk, The Fastest Relief from Fleas, Advantage for dogs with Imidacloprid is a once a month topical flea and lice treatment and flea preventative for dogs and puppies

Advantage - Medium Dogs 4 to 10kg (Aqua) 4pk, The Fastest Relief from Fleas, Advantage for dogs with Imidacloprid is a once a month topical flea and lice treatment and flea preventative for dogs and puppies

Advantage - Large Dogs 10 to 25kg (Red) 4pk, The Fastest Relief from Fleas, Advantage for dogs with Imidacloprid is a once a month topical flea and lice treatment and flea preventative for dogs and puppies

Advantage - Extra Large Dogs Over 25kg (Blue) 4pk, The Fastest Relief from Fleas, Advantage for dogs with Imidacloprid is a once a month topical flea and lice treatment and flea preventative for dogs and puppies