replacement coils can be found here
Ubox Kit by Digiflavor is a user-friendly starter kit for beginners. It's an ideal combination of compact box mod and great flavor sub ohm tank. The Ubox is compact and easy to carry, featuring built-in 1700mAh battery, textured surface and simple operation with LED light indicator. And the Utank applies bottom airflow and brings thick vapor clouds & great flavor.
Size: 22mm x 35mm
Drip tip: 510 drip tip
Coil: 0.5ohm (20-30W)
Size: 38.5mm x 24mm x 60mm
Max voltage output: 4.2V
Temperature: 0-40? (working)/-20?-60? (storage)