Beirui Bling Rhinestone Leather Dog Collar - Crystal Studded for Dog & Kitty Cat 4 SIZES WITH 5 ADJUSTABLE HOLES X-small ,Total length is 12" (30cm), 8-10"(20-25cm)adjustable Small ,Total length is 14" (36cm), 10-13"(25-32cm)adjustable Medium,Total length is 16.5" (43cm), 12-15"(30-38cm)adjustable Large ,Total length is 20"(51cm), 14-18"(35-35cm)adjustable Please leaving a space between each neck and collar ,so our babies will feel more comfortable and relax Product Package One bling rhinestone leather dog collar in good condition About return policy If you are not satisfied with our product or order wrong item, let us know at the first time, we promise to reply you in 24 hours. If we make a mistake, we promise to resolve it for you immediately. About our services If you have any questions, please leave your messages by email, we promise to reply you within 24 hours and offer you best services. If you are not satisfied, before you leave the Negative/Neutral feedback, contact us and let me know that, we will resolve the problem till you satisfy. Please check the size before you confirm the order and we are always here for you.Thanks for coming to my store and enjoy your shopping!