Ketchum tamperproof tags are ideal for Government and Associations as they are the most dependable and economical tags available. Consecutive numbers are stamped on the front (FACE: side with point). Tamperproof tags are made of steel and are most suitable for Cattle, CERVID and other large frame herds. They are 35mm x 8mm (1-3/8" x 5/16"). Tamperproof tags can be consecutively numbered with up to 9 numbers on the FACE. Minimum order 1000. Made using plain steel.