Compatible with: 510 Tanks Variable Voltage: Four (4) Settings Green: 2.7V Light Blue: 3.0V Blue: 3.3V Red: 3.7V Size: 38.36mm x 36.9mm x 68.2mm Battery: 400mAh Capacity: Up to 2g cartridges Charging: USB-C Pre-Heat: Yes Activation: Button This product and all products on this site are intended and sold for legal purposes only.