... brass, aluminum, and alloy zinc 2) Tag Specification: 3.0cm x 5.2cm x 0.2cm3) Bean chain specification: dia.: 0.24cm ... , 50-60cm4) Printing: electroplating, laser carve, die-cut, deboss and emboss5) Different colors/rubber ring ... optional The design, color, size, shape can be changed by customers dog tag,badge,bottle opener,belt buckle,key chain