Made of high quality aluminum, durable, double-sided writing, waterproof and UV resistant, 50 aluminum labels in a pack. Enough quantity for daily essentials and replacements. You can record all information with a marker, pencil or other sharp object, and the information is permanent and readable for years. Double-hole design: Unlike other similar products with single-hole designs, our double-hole design distributes the load on the tie, preventing the tie from warping or being blown around by the wind. /p> The metal wires on the metal tags you receive are cut to size, you can hang them on your plants by the wires. The metal plant tags are perfect for labeling trees, plants, seedlings, flowers, greenhouses, pot trials, etc. They are suitable to be placed in mini greenhouses or humidity domes or in your garden, you can also place them in your office or bedroom to remind you of important things.