Berry Pet Rhinestones Dog Collar - 1.5&ldquo; Width Leather Made with Sparkly Crystal Diamonds Studded - Shining Pet Apprearance for Medium & Large Dog Walking - Red,19-21.5" FIRST LAYER LEATHER - The material is called first layer leather, not PU.It's more sturdy and strong than others' EASY FOR LEASH ATTACHING - There's a heavy duty chormed D-ring on the back of the collar for lead attachment, making dog walking more easier TOP CRAFT OF RHINESTONES STUDDED - The rhinestones are laid by workers' hand one by one, so it's not easy to fall off and you can keep it for a long long time SIZE & MEASUREMENT - Neck for 19-21.5" , 4 adjustment holes.In order to save your money and time,please take a measurement of your pet's neck size before you order 100% GRANTEE & 180 Days QUALITY WARRANTY - Wed like to sell products with your satisfaction so we provide a 100% money back guarantee if there is any quality problems on this products.