Coastal Pet Products DCP36922FRN K9 Explorer 1-Inch Dog Collar, Medium, Fern K9 Explorer Reflective Adjustable Dog Collar, color: fern, adjustable sizing to fit necks 12" to 16.5". The collar has many one-of-a-kind features including a side-release buckle, moveable D-ring and reflective stitching. Reflective stitching woven into luxurious nylon for night time safety. This collar is comfortable, appealing and durable. Great for everyday use.