Bob Martin Reflective Felt Flea Collar for Cats and Kittens (from 12 Weeks) is the simple way to protect your cat from fleas and ticks. o Protects for up to 4 months; o Suitable for kittens from 12 weeks of age; o Reflective – to help keep your cat seen at night; o Metal Bell – to help keep your cat heard; o Unique 'breakaway' safety feature allows your cat to escape should the collar become hooked or tangled; o Active Ingredient: Permethrin 456mg (Cis:Trans 40:60). Colours and styles may vary. One supplied. Fleas are often found within your cat's baskets, bedding, and regular resting areas, including carpets and soft furnishings; these should be treated with a household suitable flea spray and vacuumed regularly.