The TEMCo Nickel Ni200 30ft Vapowire is quality made in the USA specifically for vaping. Composed of commercially pure (99.6%) wrought Nickel. 30 ft. spools of this round nickel non-resistance vape wire is available in both 28 and 30 gauge. This is the perfect vape wire to use when building atomizer coils for use with temperature controlled devices. Note: To maximize safety and durability When using The VapoWire Ni-200 Wire DO NOT torch, dry burn, or otherwise heat any Ni-200 wire above 600F to prevent the vape wire from becoming brittle and to minimize the chance or graphitization.