Ruby twist injector ball vape in perfect working condition. I've got the universal baller now so this will serve a beginner enthusiast perfectly. I upgraded the ballerhead by removing the twist insert and adding more 2mm rubies - producing better thermal mass and quicker extraction.. I've included the twist insert just incase you want to use it instead, but I find the modded way far superior to the stock. I've included a glass pass through bowl and a microdose bowl as well.