-This metal crackling tube's alloy material has a matte feel, and the cut surface is smooth
-The electroplating process makes the paint surface more solid and not easy to fall off the paint
-Use a 6mm elastic soft rubber ball, and the aluminum alloy tube is a 5mm inner hole.
-Put a soft rubber ball at each end, and then you can use an aluminum alloy stick to force it out Plug one at each end (make sure it is fully inserted), use an aluminum alloy stick to poke it out