14/20 black male is made out of 12X2mm black tube.

Our glass joints are precision manufactured with an accurate taper and smooth finish for leak-free performance. Also our own QC staffs check the quality strictly. Our product has good taper and good appearance.

Our 14/20 black male match 14/20 black female very well.

For 14/20 black male, each case includes 72 pcs.

If you have any questions, please feel free to let me know.

Xiong_liying(at) hotmail dot com