Butterfly Effect - Custom Pet ID Tag for Dogs and Cats - Dog Tag Art IMPORTANT: Please leave your information for the back of the ID tag in the Gift Message field upon checkout. You may also message us through Amazon with what you would like. You get 4 lines with about 20 characters in each. Solid one-piece construction - No glued or sandwiched materials to wear out or fall apart. Split ring for collar attachement included with EVERY tag. Countless uses  School backpacks, luggage, fashion accessories, and many more! Lifetime guarantee  If your pet ID tag ever becomes illegible, we will replace it free of charge. Hundreds of designs  Dont like this design? We have hundreds more for you to choose from.