Preheatable twist on OOZE pen SAPPHIRE BLUEPreheatable twist on OOZE pen SAPPHIRE BLUE Description The Twist Slim 2. 0 has a sturdier feel that has more weight in your hand, and immediately tells you its a quality device. This new model has a more streamlined silhouette. The collar that used to hold the threading at the top of the battery is now flush, making it look longer despite only being 1cm taller than the 1. 0 version. The flex temp dial on the bottom has also been updated. We lowered