Coastal Pet Products DCP36922SAP K9 Explorer 1-Inch Dog Collar, Medium, Blue K9 Explorer Reflective Adjustable Dog Collar. Total length: 12". Color: blue. Width: 1". Adjustable sizing to fit necks 12" to 16.5". The collar has many one-of-a-kind features, including a side-release buckle, movable D-ring and reflective stitching. Features a reflective stitching woven into luxurious nylon for night time safety. This collar is comfortable, appealing and durable. Perfect for everyday use.