Show your affection for your cuddly canine or furry feline with the Heart Shape Pet Tag Aluminum. These custom engraved pet tags are made of aluminum with a stainless steel finish. Sturdy fastener attaches easily to collar. Specify up to 4 lines, limit 22 characters & spaces per line. Approximately 1 1/4" x 1 3/8". In order to produce a better product for our customers, this product is now limited to 4 lines of personalization.