Petflect Orange & Gray REFLECTIVE light reflecting Nylon Plastic Adjustable pet DOG COLLAR high visibility (Orange & Gray - Pack of Two) Made from durable nylon & Fully adjustable made with reflective material and lined with fluorescent orange nylon to increase daytime visibility easy to spot from more than 500 feet away Closure type: Collar-clip Safety: Quick-release Medium/large: 20.5 to 28.75 to 16 to 24 inches in diameter x 1 inch wide nylon webbing.