Set other pets' and their owners' hearts ablaze with envy over the cute and trendy Heart Shape Pet Tag Solid Brass.These custom engraved pet tags are made of aluminum with a solid brass 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.