METAL BUCKLE: The hardware is made from zinc alloy with gold plating which is stronger and more heavy-duty than plastic buckle. The metal buckle is easy to be fastened tightly and unfastened quickly. CLEAR DURABLE LASER-ENGRAVED TEXT: Your customized text ( dog name, phone number and other texts ) will be clearly engraved at the center of the metal buckle by laser, which is not easy to be faded. SOFT COMFY VELVET: There are two layers of soft woven fabrics sewed tightly together. The upper layer is beautiful soft velvet, the bottom layer is woven cotton that’s soft and skin-friendly. ADJUSTABLE LENGTH: The length of the cute dog collar can be adjusted so that it can still fit your dogs as they grow up. But it’s not elastic. So please be sure to measure the perimeter of your dog’s neck and check the size chart before placing order.