Replace old 3/4 collar straps or add a color for differentiating between each dog with the SportDOG Brand Reflective Collar. Simply remove the collar receiver from your dogs current collar and place it on the new strap. Fits necks from 5-22 with 41 tightly spaced holes to ensure a correct fit. Metal roller buckle fastens easily and the metal strap keeper adds safety. Waterproof and rustproof, the collar is compatible with the FieldTrainer 425 and 425S; SportHunter 825, 1225 and 1825; WetlandHunter 425 and 1825; ProHunter 2525; and HoundHunter 3225. Colors: Blue, Orange (not shown). Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Collar Accessories.