Tamper resistamt leg bands seal with special Atlas leg band pliers # 26305S or # 26347, each band has three size adjustments (size 9 thru 13) and fit hens, stags, & cocks. What most pits used. They are sold in lots of 100 numbered bands. May be cutomized with your initials, words or numbers at extra cost.
These bands are available in BLACK, BLUE, GREEN, ORANGE, PURPLE, RED, WHITE and YELLOW colored aluminum. Or, non painted aluminum (silver color), or non painted brass (gold color).