El Thunder 20700 is made in an ergonomic form factor with four notches, thanks to which the fashion fits perfectly in any hand.
The productivity is the responsibility of the recycled collet contact system. This design both reduces the resistance of the transient, and allows the button to be pressed evenly over its entire area. "Petals" are cleaned by themselves on contact - you do not need to look after them. The contact area compared to the classic version of El Thunder increased by 10.5%.
The button has a permanent contact system to protect the battery from black points. In the kit two silver plated spacers - for standard atomizers, and drips with long pins (for example Battle Deck) and adapter with a spacer for 18650 batteries.