Dogs My Love Red Faux Leather Spiked Studded Dog Collar 21.5"x1.25" for Medium/Large Breeds Fits 17"-19.5" Neck The collar is made of high quality PU (Faux) leather. Light, elegant, not stiff Nickel-plated hardware and D-ring Overall length 21.5", will fit 17"-19.5" neck 1.25" wide double layer PU leather, 3/4" tapered ends provide easy buckling and give collar a streamlined look 5 adjustment holes