Bayer Seresto Solid Cat Flea and Tick Collar Flumethrin 0.44 oz.Getting your cat Bayer Seresto flea and tick collar is an easy way to protect them. With just one Seresto collar, they'll get eight months of protection without the hassle of monthly treatments. This cat collar kills fleas and ticks upon contact, so the fleas won't need to bite your pets first, unlike the oral cat flea treatment products. With imidacloprid and flumethrin, this Seresto flea and tick collar will kill more fleas and ticks than other