A wing band which fastens much as the metal leg bands do. Band needs to be pushed through wing web by hand, then bend the band by hand and the use Zip wing band pliers (#890S) to seal the band on the bird. Sold in lots of 100 numbered bands, may be customized with your initials, words. or numbers at extra cost. Zip is not available in brass. Plain aluminum (silver color) are $1.00 per box less than colored.