Slide On Pet ID Tag for Double Thick Nylon & Leather Collars - Boomerang Tags - Engraved & Personalized Custom Dog Cat Collar Tag PERSONALIZED COLLAR TAG - Engrave 5 lines of text for your pet's name, owner name, phone number, address, and city/state. SLIDE ON TO THICK COLLARS - This tag stays in place on your dog's collar without any chance of falling off! FITS LEATHER AND DOUBLE THICK COLLARS - This double thick collar tag is made for belt style thick collars made of leather or double ply nylon, maximum 3/16 inch thick that close with a belt buckle with holes to adjust the size. PLEASE NOTE - This style will NOT work with adjustable length collar that closes with plastic clip. See our other styles with open ends. TEXT WON'T WEAR DOWN - We use a special engraving process to get deep lettering that does not easily wear down. BOSS PROMISE - Backed by "The Boss Promise", a 5 year manufacturers warranty that protects against defects and product issues.