Soil and odor resistant, water repellent, high visibility polyurethane coated 1 inch wide nylon dog collars. Also resists rotting and is easily cleaned. Can be cut off and holes added without burning or melting like conventional nylon. Ideal for identifying your dog in the field during the day. Ring-in-Center style rolls over to prevent dog from becoming entangled on fences or the brush. In sizes 19, 21 & 23. Colors are Blue, Green, Orange, Pink, Red, Yellow & Purple For correct collar size PLEASE MEASURE YOUR DOG'S NECK AND ADD 4 INCHES. You can add another hole to this collar if the collar is a little too long, but you can not add more collar if the collar is too short.