Neck 14.5"-20", Width 3/4", Size Medium; The collar does not stretch itself, please make sure leave ONLY 2 fingers between collar and dog neck. A properly fitting collar and harness won't leave any room for your dog to chew. To make a safe and fit purchase, always look at the size chart for the recommended weight range to confirm the size | NOT FOR TIE OUT - Never leave your dog unattended with a collar on. The personalized collars help ensure the safety of your pet if they wander off or get lost. All buckles are made from ecofriendly plastic | EMBROIDERED COLLAR - Customized in the USA. Pet’s name and phone number will be embroidered on different pattern collar, and embroidery range of dog collar is limited. Please pick embroidery thread color (font color) and enter exact text you want to display on the collar. We have 11 font colors for your choice: Marron, Dark Violet, Yellow, Dark Cyan, Sunkist Coral, Orange, Black, Grey, Royal Blue, Red, Green | PET'S NAME/PHONE NUMBER MAY BE PARTIALLY COVERED BY THE CLASP - The beginning of the first embroidery character will be relatively fixed ,and sometimes the name/ numbers will be tuck into if you adjust this collar with different length, that does not affect normal use. We are open to customers' voices; Don’t hesitate to contact us for more details | COLOR DIFFERENCE - Due to different computer monitors/calibrations, colors may vary slightly from the picture, but all pictures are taken with production samples. Other customized products please search ASIN B074366GFZ & B079FPJXFN