About this item ALLERGY-FREE: The Collar can prevent and treat fleas infections, inhibit the growth of fleas, assist in the treatment and prevention of allergic dermatitis LONG-TERM PROTECTION: Collar is committed to preventing dogs from being injured by fleas and ticks. It provides continuous effective protection for dogs for 8 ~ 12 months NATURAL INGREDIENTS: Flea and tick collar based on the herbs and oils that can repel fleas and ticks effectively, but friendly and safe for pet and owners as well, One Size Fits All COMFORT TECHNOLOGY: Unique and flexible collar design keeps your dogs comfortable yet protected with a smooth surface interior, Each tin comes with 2, 8-month collars that provide 16 consecutive months of flea & tick protection WATERPROOF COLLAR: Great for use at the beach, on vacation, at campsites, on the boat, on hikes, at the pool. No need to take off the cats collar when swimming or bathing See more product details