Due to its composition, it can be used in puppies from 2 months or 0.8 kg, dogs with sensitive skin or allergies, elderly dogs, environments with children, etc. Features of the Stanvet Life dog collar New polymer-based technology with continuous and uniform release. Up to 4 months of protection. Waterproof: its effectiveness is not reduced by water. With safety lock: prevents the dog from losing the collar. Neutralizes body odors and provides a pleasant aroma. It does not contain synthetic insecticides, PVC, halogens or heavy metals. Presentation: individual display box of 12 units. Features of the Stanvet Life cat collar Quick release buckle: safe for cats. Up to 4 months of protection. Waterproof: its effectiveness is not reduced by water. Suitable for kittens from 2 months or 0.5 kg. Cats with sensitive skin, allergies, old age, environments with children... Neutralizes body odors and provides a pleasant aroma.