Zamac metal bead, in the shape of a slider. It measures 9 mm long x 8 mm wide. The inner hole measures 6 mm x 2 mm, which is ideal for threading a flat leather lace to make a bracelet. There are two sides, one with a striated engraving and the other with a pitted surface. Slider bead Material: Zamac metal (an alloy based on zinc, combined with aluminum, magnesium, and copper.) Size: 9 x 8 mm Colors: Antique silver, Brass