Kayfun 4

Kayfun 4.1 Features:

1.new version kayfun v4 made of 316 stainless steel
2.22mm diameter with brushed finish
3.liquid control function,open and shut
4.adjustable 510 connector
5.any time access to the coil
6.exchangeable tanks(glass,polycarbonate,steel)
Kayfun 4