These Mesh Style Coils for the Wotofo Profile PS Dual Mesh RDA are made specifically to be used in that RDA. It includes 10 Coils per pack. The Coil is made of Kanthal A1 Wire. These Mesh Coil Sheets measure 16mm x 6.8mm. The Coil Resistance is .30 Ohms and the Power Wattage Range is 30W to 40W.