Above is a layout of how dog collars are measured in inches, you should round to the nearest inch. Start the tape measure at the beginning of the dog collar, where it meets the buckle and measure to the end of the dog collar for your desired length. Next measure from the beginning of the buckle to the last hole in the dog collar that you would use. Our custom handmade dog collars are made of quality leather. They are available in black and dark brown with a clip buckle. Other colours and sizes are available upon request.