This Round Bottom Spinner Kit Z by aLeaf includes a custom ball carb cap. This ball carb contains an elegantly placed air flow system. Also included in the kit is a 99.9% round bottom banger and two mini pearls. Features & specs.Spinner Kit "Z" Custom ball-carb cap High-quality glass design What's in the box.1x Aleaf Spinner Kit Z Round Bottom - 14mm Male - 90 OR 45 Degree 2x Mini dab pearls