Permanently engrave your warnings, messages, instructions, or sample number on these aluminum metal tags. Write on them with an ordinary ballpoint pen. Features a “soft center” that accepts messages on both sides. Extremely durable and suited for use in hot, cold, and moist environments. Handy size of 3-1/8 x 1-3/8 inches makes it ideal for tagging valves, tubing, samples, and cylinders. Package includes 48 tags with wires.