NON-TOXIC: These dog collars were rigorously tested by REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) the European Union’s version of the EPA. Their conclusion is that allergic risk is very low due to the slow release of the active ingredients.
Dog Collar fits up to 20 in.Medium
Dog Collar fits up to 23 in.Large
Dog Collar fits up to 29inDo not use on puppies under 4 months of age
Duration: Collar is effective for 3 months