Tried this on a 901 and it looks really great - better than i had hoped, really nice. Wrap around some sandpaper (i used grade 100, fine-ish) and twist so always in the same direction - around the tube. Takes some work but the white or black coating comes off nicely to give a lovely platinum look. Makes the vaporizer look slimmer too, and not only because the paint is quite thick. As models may vary, i give no guarantee on this of course - try an expired battery or atomiser first.