Garmin 3/4 -Inch polyurethane-coated collar straps are rugged and waterproof, just like the original collar that comes with Garmin dog training devices. Different color selections have multiple uses including allowing trainers and hunters to keep track of different devices paired with a single unit or keeping track of your dog in the field. 3/4 -InchNylon material27" longNickle-plated square buckle