This is a ribbon-shaped pet tag. Material: Cowhide (vegetable-tanned leather) Design: Ribbon Sizes: Large → 5cm (height) x 11.5cm (width) Medium → 4cm (height) x 9cm (width) Small → 3.5cm (height) x 8cm (width) ・You can put your pet's registration tag or vaccination certificate inside the ribbon. ・For collars wider than 2cm, adjustments are necessary, so please contact us in advance. ・You can choose other colors from the 6th photo. ・You can choose either gold or silver buttons. ・You can engrave up to 11 characters (alphabets and numbers) on the back (e.g., name, phone number). ※Please understand that this is handmade before purchasing.