5 adjustable metal eyelets keep the genuine leather dog collar at the correct size. Strong and durable high quality PU leather (artificial leather). Light, elegant and not rigid. Galvanized alloy hardware accessories, no fading, good tension, high quality. The high quality alloy D-ring can be attached to the dog’s leash when walking, exercising and traveling when going out. Note: Measure your dog’s neck circumference with a soft tape measure before ordering. Protective Collar with Spikes If you are worried about your dog/cat constantly chewing on their collar. If you want to protect your small dogs from attacks by other large aggressive dogs. If you want to prevent other dogs from grabbing it by the neck. If your dogs/cats have been quarreling and hurting their necks, hopefully there is some protection against those very harsh bites. Dog Collar Leash These beautiful dog accessories (collar, leash) are made of high quality leather and are environmentally friendly. Size Chart XS - width