Product Description : Our anti-flea and tick collars for dogs are adjustable, and especially formulated to prevent dogs from catching fleas, ticks, mosquitoes and 500 other insect species. No need to worry about ticks and puppy fleas while walking. Powered by 5 types of natural essential oils and pure are provided. Our dog lice collar does not contain harmful chemicals and is harmless to your pup. It's gentle on the skin of puppies, but can effectively prevent the entry of fleas. Protection DURABLE - Our flea collars are made of durable materials to protect your dog even during vigorous play. This dog collar can protect your puppy against fleas and insects for up to 8 months. Adjustable for big and small dogs - the collar is 25 inches (about 63.5cm) long, and our anti- chips can be adjusted and cut to fit your pup perfectly. This necklace head lice for dogs is designed to suit all sizes of dogs. SERESTO Dog Flea and Tick Collar for Large Dogs - 8KG and More 1. LONG-LASTING ANTI-PARASITIC COLLAR: Seresto protects your dog against fleas for 7 to 8 months and up to 8 months against ticks 2.EFFICIENCY BY CONTACT: Seresto acts on parasites even before they bite/ bite your pet, saving it pain, discomfort and stress 3.UNIQUE TECHNOLOGY: The Seresto collar gradually releases active ingredients throughout the duration of the treatment and protects evenly from the head and up to your dog's queue 4. WITHOUT ODOR OR GREASY TEXTURE OR TOUCH & WATER RESISTANT: Characteristics of the necklace thoughts so as not to generalize the relationship between you and your pet. The Seresto pest control collar remains effective in moderate water exposure 5. REDUCES THE RISK OF LEISHMANIOSIS: This disease transmitted by sandflies is incurable and can be serious or even fatal for your dog.