NEJE Needle tube Air Assist KIT For NEJE A40630 A40640Ⅱ E40Ⅱ E80 Laser Module

Packing list
Needle tube air nozzle with 4mm- 4mm connector * 1,
3m(length）, 4mm (inner Diameter) air tube * 1,
4mm-8mm air tube connector * 1, 
Screws * 2,
2.5mm wrench * 1,