Smooth and Elegance neck and top fit all 510 carts
Battery size ：Diameter 14* Length84mm
battert ：650mAh
5 clicks ：on/ off
2 click--14S preheat function
3 click adjust voltage
Green light-2.8V
Blue light-3.6V
Green light-4.2V
New ：dual charging way
Type C and Iphone charger port
color ：red black ，rainbow silver，gold，blue ，green... customize available
