Blueberry Pet Collars For Dog Classic Solid 1" Large Neoprene Padded Citron Striped Dog Collar Large Width 1", Neck 20-24" Large Width 1", Neck 20-24" Since the reflective threads are stitched into the nylon webbing, it is normal to see that the reflective strings are frayed with the stiches where two layers of webbing are connected. The durability of this collar will not be affected. Please note that the reflective threads are stitched into the webbing on one side only. This collar is a single product. However, it comes with matching leash/harness to complete the look. Leash and harness sold separately. Picture was taken from a size Medium: 3/4"(W)*16-19"(L).