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US dollar price:
23cm long tube:16.6
35MM integrated concave and convex engraved lettering:16.2
12cm lettering tube:14.8
556 bady special connector:16
Dimensions after product packaging about:15cm * 12cm* 5cm
Gross weight of product packaging: 0.120Kilogram

Before and after the concave and convex tube, the screw teeth have the function of top spin, and the integral speed is higher than a certain value.
When installing, the inner tube is behind the upper swirl, that is to say, it is shorter than the upper swirl.