The Primova Pet Products – Cat Flea and Tick Collar with Flea Comb For Cats, Adjustable Waterproof Kitten Flea Collar, Naturally Formulated with Essential Oil is a hassle-free way to keep your cat safe from fleas and ticks. Made with durable materials, this collar can last for 8 months. The collar is adjustable for big and small cats, so it will fit perfectly.