Aluminium Perma Tags for identification and tagging of survey marks, pegs and samples with many other useful applications. They are easily marked with ink pens or scribers for easy identification. They can be stamped, nailed or tied to form a durable marker. These versatile tags have many uses in the field and around your workplace. Size: 75 x 25mm with a 3.3mm hole diameter. Comes in a packet of 1000.