Genuine AtomizerWick Brand 0.8mm x 0.1mm Kanthal A1 Flat Ribbon Resistance Wire 5.76 Ohms/ft Approx 28 gauge - 50ft spool Heat resistant up to 1400C Resistance = 5.76 ohms/ft at room temp 0.8mm x 0.1mm (thickness x width); shape: flat ribbon Approximate round wire equivalent: 28 gauge Kanthal 100% SATISFACTION GUARANTEE: We stand by our products and if you are not happy, we are not happy and we will gladly give you a refund. We have 100% positive customer feedback for a reason!