USD 3.30-38.00/pieceUSD 3.20-78.00/pieceUSD 6.59/pieceUSD 6.69/pieceUSD 13.99/pieceUSD 3.99/piece Specification: 1/3/10/20pcs The more preferential! Coils have black and white two colors, but are not related to the quality of the product. We will be random delivery, please understand. Alloy: Nichrome 80 (80% Ni, 19.5% Cr, 1.45% Si) Gauge: 28 AWG Average wire diameter: 0.0126 in. (0.32004 mm) Weight & length: 100ft Shape: Round Heat treatment: Annealed (soft) Resistance (Ohms/ft. @ room temp): 4.0942 Melting temperature: 2552°F (1400°C) Maximum operating temperature: 2150°F (1180°C) Density: 0.304 lbs. per cubic inch Specific gravity @ 68°F (20°C): 8.41 Thermal expansion: 14 x 10^(-6) per °C Applications: Heating elements (hair dryers, ovens, toasters, kilns), model and high power rocket motor and recovery ejection charge ignition, heat sealers, poly cutters, foam cutters, resistors, rheostats, current-temperature controls, pyrotechnic ignition, electronic cigarettes, lab inoculating loops, release mechanisms, ceramic support in kilns.