This is a new 1.5 inch wide (38mm) Martingale Dog Collar in Purple Roses Pattern. Fully Lined in Satin Finish Fabric for your dogs comfort. (Measure to make sure your dogs neck is long enough to wear a 1.5" wide collar before ordering as some dogs do not have a long enough neck to comfortably wear a Wide collar). Martingale collars are a partial choke type collar suitable for many breeds. They do not have a buckle or clasp and slip on over the dogs head and adjust to size. Measure your dogs neck where the collar sits and add a couple of inches extra for the collar to slip on over the dogs head. Note: Most Greyhounds wear medium size. Collars have strong nickel finish hardware and a welded D-ring. Made in Canada.