Stringers are threads of glass pulled from remelted Bullseye COE 90 tested compatible sheet glass. They are often used as decorative elements on fused glass pieces, or for delicate detail in flameworking projects. Because of their thin size, stringers can be bent using the heat of a candle. Each stringer is approximately 17-1/2" long. A tube of 0.5mm stringers contains 140 grams (5 ounces), 1mm stringers contains approximately 140 pieces, and a tube of 2mm stringers contains approximately 45 pieces. Tubes are packaged by volume.