Engraved Reflective Waterproof Soft Grip Dog Collars for Medium to Large Size Dogs SIZE: Collar is 1 inch wide and fits dogs with neck sizes of 12-16 inches. To determine collar size, please measure your dogs neck with a sewing tape or string. HIGH QUALITY: This collar is made in the USA from durable, weather resistant Biothane. This collar is also waterproof, smell resistant and made with corrosion-proof stainless steel hardware. GUARANTEED FOR LIFE: Each collar is laser engraved with your dogs name and phone number using a deep fiber laser. We guarantee the quality of engraving for the lifetime of the pet. FOR MEDIUM-LARGE DOGS: This collar is heavy duty but the hardware and strap can be a bit too large for small pooches. Recommended for dogs 40lbs and up. Please read sizing information below to determine best size. SAFETY: This collar boasts a 3M Scotchlite Reflective Strip, keeping your dog safe during night walks or while playing in the backyard.