The E- Collar Strap is a thin coated nylon strap with a stainless steel buckle that holds the e-collar device on your dog. Strap is 30 inches long with multiple notches in order to fit a wide range of dog breeds. Available in 3/4 inch wide to fit Garmin brand e-collars and 1 inch wide to fit Dogtra brand e-collars. Comes in colors Blue, Green, Red and Yellow, perfect for the multi-dog owner or for replacing previous straps. This collar strap is waterproof, weatherproof and easy to clean. ***Can be used with any brand e-collar, measure for the appropriate width.