Twist Slim Pen 2.0 - 320 mAh Flex Temp Battery - Rainbow color-green It has small air holes

It has small air holes around the sides to suck up all that delicious

4” compact device

It's as basic as you can get without sacrificing any function

If you are using a regular Ooze pen

but the Ooze Thank You Gift Card turns every day into a party

Twist Slim Pen 2.0 - 320 mAh Flex Temp Battery - Rainbow color-green It has small air holesWhat it is: The best selling Ooze pen of all time! This is the 510 battery that comes to mind when you think of an Ooze pen. Why we love it: Its reliable, compatible with ALL 510 cartridges, has a twist dial for voltage control, and comes in tons of colors. The Twist Slim Pen 2. 0 is the revamped, upgraded version of our original Twist Slim Pen. We gave it a more streamlined silhouette by removing the chrome collar at the top, lowered the voltage