1WATERPROOF: Metal plant labels are waterproof, your information is permanent and will remain legible for years to come. 2DUAL SIDED WRITING: Plant tags provide plenty of room to record any information with a ballpoint pen, pencil or other pointed object. 3APPLICATION: Plant labels are perfect for labeling trees, plants, seedlings, flowers, greenhouses, potting trials, etc., suitable for placing in mini greenhouses, humidity domes or gardens. 4100PCS: Tree Identification Tags total 100pcs, plenty of quantity for daily supplies and replacements, aluminum material, sturdy and durable. 5DOUBLE EYELET DESIGN: Tree tags' unique double eyelet design spreads the load of the wire bundle without reinforcement, preventing it from warping or being carried away by the wind.