Notable Features Pairs the KBOX Mini and Subtank Mini Variable Wattage Two OCCs Improved RBA Easy to Assemble New Airflow Design Uses 18650 Battery (Not Included) Available in Two Colors (Black and White) Technical Specifications Subtank Mini Height – 54mm Length – 22mm Capacity – 4.5ml Threading – 510 KBOX Mini Height – 81mm Width – 38mm Wattage – 50W Threading – 510