Features:
1,full detachable, all mechanical switch
2,no wire solder , no welding
3,pure stainless steel body , high quality
4, perfect vent holes on the bottom side
5,fit both 18350 , 18500 and 18650 battery , very flexible
6,with switch on the bottom side, easy to press

 Specifications:
1.Brass material.                                   
2.Top Cap with air control ring,                             
3.18350 Tube, 18490/18500 Extension Tube, 18650 Extension Tube,                           
4.Bottom Cap with lock ring.                             
5.Optional atomizer: ce4,vivi nova,dct,protank,mt2,oddy etc.