Medium Genuine Leather Jeweled Rhinestone "Esprit" Dog Collar This collar combines the beauty of genuine leather with color coordinated amber and gold colored rhinestones. Made with beautiful vegetable tanned Chestnut colored premium Buffalo leather; inner padding covered with super soft cow leather to ensure long lasting comfortable wear. Recessed and securely fastened crystal chain alternating gold and amber colored rhinestones. Complemented by strong, stainless steel hardware, the die cast buckle and durable welded D-Ring give superior strength. 1"wide; 5 evenly spaced adjustment holes (1 apart); adjusts from 15 to 19. Suitable for true neck-size 14  18. Measure the true neck size using a cloth tape measure. Measure the circumference where your dog usually wears the collar to determine the true neck size. Or, if you are satisfied with your dogs current collar sizing, measure that collar from the center bar of the buckle to the desired hole position.