3/32 inch (2 mm) diameter, Chinese made, uncoated fuse. You use Flying Fish fuses by cutting them into short pieces, 1 to 1.5 inches long. Use inside aerial fireworks or mines as a quick and easy alternative to making stars. Burns at about 1.75-2.0 seconds per inch with loud, fiercely crackling, yellow sparks. 31 one-meter pieces, 100 feet total.