Pack of 100 Mutton, Sheep, Pig, Hogs, Goat, Llam Ear Tag As Identifying Mechanism SUPERIOR READABILITY:Easier to read from front or back. NON-FADE NUMBERS:Exclusive Laser printing guaranteed for the life of the animal. FOOL-PROOF ONE-PIECE DESIGN:Back of tag will not snag and pull out or break off. EXCLUSIVE SELF-PIERCING TIP:Clean, precise incision helps prevent infection&disease transfer. SIZE INFORMATION:Length of the tag :approx.5CM,Width of the tag:1.8CM.