WE CAN LASER ENGRAVE ONLY TWO LINES OF TEXT LINE 1 Pet Name LINE 2 Phone number These collars will fit most dog breeds from small to extra large, and will perfectly fit most puppies. Will fit sensitive skin dog’s due to soft tan leather base. Size XS length 16″, will fit 11″ – 14″ dog neck, width 1/2″. Reference number 0012. Size S length 18″, will fit 12 1/2″ – 16″ dog neck, width 3/4″. Reference number 0141 Size M length 22″, will fit 15″ – 20″ dog neck, width 1″. Reference number 0229 Size L length 27″, will fit 19″ – 25″ dog neck, width 1 3/8″. Reference number 0279. Size XL length 31″, will fit 22″ – 27″ dog neck, width 1 3/4″. Reference number 0359. If you have any questions please do not hesitate to contact us.