Kills and repels fleas and ticks with protection you can trust from Hartz UltraGuard ProMax Flea & Tick Collar for Cats & Kittens. This collar kills fleas, ticks, flea eggs and flea larvae, while preventing flea eggs from hatching to help break the flea life cycle and protect against re infestation. Each tin includes 2 collars providing up to 14 months of continuous full body flea and tick protection. Designed for comfort, safety, and convenience, this odorless, non greasy, water resistant solution provides easy-to-use flea and tick control. Our comfort technology and patented design provide a soft, flexible collar your cat can wear all year long. For added safety, each collar includes a pre determined breakaway point to allow your cat to escape if snagged. UltraGuard ProMax Cat Collars feature outward facing ridges to help prevent skin irritation, a long-tapered end for quick and easy application, and a dual buckle system for a secure fit. Active ingredients are slowly released from the collar to provide up to 7 months of continuous, full body protection per collar making this 2 pack ideal for year-round use or multi cat households.