Our Highest Quality Adjustable Martingale Collars with Buckles and Solid Brass Hardware Our soft webbing martingale version is for pet lovers that do not want a chain version of the martingale collar. The martingale collar is fashioned after equine designs providing a form of a limited choke collar. The exceptional feature of a martingale collar is that the slip function can be limited to not over-choke your pet. Solid Brass Hardware High Quality Acetyl Plastic Hardware 42 Stitch Locking Bar Tack won't unravel like other sewing methods. Made in USA Training design inspired by equestrians. Quick Release Buck for Easy on/off without disturbing your dogs ears. Not Intended for Tie Out. Available in multiple sizes and colors to fit your dogs size and your favorite color Sizes: xSmall - 10 to 14 inches x 3/8" Small - 14 to 18 inches x 5/8" Medium - 15 to 20 inches x 3/4" Large - 18 to 23 inches x 1" xLarge - 21 to 30 inches x 1" Available in reduced priced bulk packs for Shelters, Rescues, Vets, Trainers or Special Causes for Dogs.