~Silver Velvet Aurora Sparkle~Rhinestone Dog Cat Pet Collar MEDIUM #293 5/8" Silver Gray Velvet sewn onto a nylon webbing with White and Aurora Borealis Crystals High Quality Crystal Glass Rhinestones, Diamond Clear & Aurora Borealis Rhinestone Buckle + Free Heart Charm included Measure around neck with snugly NO Extra Room, We add to that measurement.Fits 9-1/2" thru 11" actual snug neck circumference, NOT collar size. We have a matching leash available for purchase.