The product description 1. | design: many points to choose a dog every day, so you don’t wear the same one. 2. Compatibility: Replace invisible fence brand collars, as well as other brands (see product description for model details) 3. How to use: unscrew the receiver contact point from the collar, remove the old leash and replace it with a dog leash, adjust the leash to fit the neck, cut off the excess and heat the leash. End with a flame to prevent fraying 4 Care: Machine washable strap. Remove receiver before cleaning
