The Petface reflective collar lights up and shines all the way around a dog's neck. Perfect for dusk and night-time visibility. The on/off switch and battery (included) fit in a slot built into the collar. It is made with strong but soft nylon webbing for ultimate comfort on a dog's neck. The buckle is the strongest available to ensure your dog's safety as well as your peace of mind. Easily clean with warm wet washcloth and air dry. A sturdy metal D ring allows you to attach an identification tag or a leash. Package includes one collar, Medium, for a dog's neck approximately 14 to 16 inches (35 to 40cm) in diameter and a replaceable battery. Color: Gray and yellow. Keep out of the reach of children. Imported.