Bow Tie Cat Collar Bandana Breakaway Pet Collar Bandana With Classic Plaid Adjustable Cat Collar With Scarf And Bowtie NecklaceMeasurement method: Bust size. Measure the length around the back of the dog's front legs. You can relax it by 2 3CM appropriately. Back length. The length from the neck to the base of the tail. Neck circumference. The circumference of the neck near the front legs. You can relax it by 1 2CM appropriately. Size1. 0X20~28CM ps: All sizes are measured by hand, with an error of about 1CM; all products are photographed in kind. Due to differences in