TRAINING CONTROL: Training pet collar made of highly durable and easy to clean nylon webbing and stainless steel fittings that do not fade or oxidize, so dogs can safely use them. Martingale collars are an excellent tool for leash training, for dogs that can get rid of traditional collars, and for daily walks and play REFLECTIVE WEBBIING: This reflective martingale collar made of high density nylon and reflective webbing, remains visible and safe for walking at night. The webbing adds a soft cushion inside, which is more comfortable than other nylon straps and won't cut the dog's neck from friction. Hard to deform and colorfast, available in pink, red, black, orange, purple and peal QUICK RELEASE BUCKLE: Put on and take off this quick release martingale collar for your dog quickly and easily. Alloy buckles are safer, easier to wear, more durable and less likely to break than non-buckle collars or other plastic buckles. Prevent accidental release of dog, can be quickly removed in case of emergency QUALITY STRUCTURE: This martingale collar for dogs has two more attachment points: an ID Tag ring for easily attaching name tags, and a strong metal D-ring to attach your favorite leash or other gear. COMFORTABLE WEAR: Martingale dog collars are very durable and reliable, and are lightweight and comfortable to wear. The martingale collar is adjustable to fit most neck sizes without causing irritation or discomfort. Three sizes available: small / neck girth 12"-17"; medium / neck girth 15"-20"; large / neck girth 19"-26"