NameTpu dog collarMaterialsTPU coated nylon webbingHardwarenickel plated zinc alloy buckle,D ring or O ring,rivetsSizeLength=XS,S,M,L,XL… up to you!Width=15mm,20mm,25mm,30mmThickness=2.0mm,2.5mmStandard size400mm*20mm*2.5mm 600mm*25mm*2.5mmColorFluo orange,Fluo green,Fluo yellow,Fluo blue,Fluo pink,sky blue,dark..