Numbered aluminium tree tags for identification. Tags are racetrack shaped and measure 70mm long x 25mm wide. Tags are made from 0.6mm thick aluminium and have a 4.7mm hole drilled on the left side. Available in sets of 100 (eg 1-100, 101-200, 201-300) up to 1000 and sets of 1000 (eg 1001-2000, 2001-3000) up to 10000.