Round Extra-Thick Aluminium Tree Tags These heavy-duty round aluminium tags provide a permanent, easy-to-read solution for tree identification, forestry research, and long-term field projects. Precision-engraved sequential numbers make record-keeping straightforward, while the thicker 1.2 mm aluminium delivers exceptional rigidity and durability for decades of reliable use. Each tag comes pre-drilled and supplied on a strong wire for quick installation. Available in Packs of 50, 100, 200, 500 & 1000. Pack of 100: 1-100 | 101-200 | ... | 401-500 Pack of 200: 1-200 | 201-400 | ... | 801-1000 Pack of 500: 1-500 Pack of 1000: 1-1000 An optional nails kit includes 2.65 × 30 mm aluminium clout nails (enough for one nail per tag). KEY FEATURES Size: 3.2 cm diameter (round) Material: 1.2 mm thick aluminium for extra durability Hole Diameter: 3 mm Numbering: 1 cm (H) × 0.4 cm (W) sequential numbers for easy readability