Thanks to its composition, it can be used on puppies from 2 months or 0.8 kg, dogs with sensitive skin or allergies, elderly dogs, environments with children, etc. Stanvet Life Dog Collar Features New technology based on continuous and uniform release polymer. Up to 4 months of protection. Waterproof: its effectiveness is not reduced by water. With safety clasp: prevents the dog from losing the collar. It neutralizes body odor and gives a pleasant aroma. It contains no synthetic insecticides, PVC, halogens, or heavy metals. Presentation: individual box in display of 12 units. Stanvet Life Cat Collar Features 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, advanced age, environments with children… It neutralizes body odor and gives a pleasant aroma.