Features:unique shape to select,thicken handle in the back,reflective strip,suit for every size dog. Thicken handle:when your dog in case fall down in the water,you can quickly help it to save life. Reflective Strip:quickly and easily find your dog among crowd and identify whether it need you. Novel and unique shape:beautiful style for puppy and make it special and confident when compare with other dogs. Notice:Please Refer to Left Size Chart Picture or Size Details in the Description before placing order. Please allow 1-2cm differs due to manual measurement, thanks.