Material: stainless steel

Height: 22mm/0.87in

-The thickness isabout 3mm. Compressive resistance， safe.

-Net weight of more than 8g/only. 

-Clear thread precision， scale， opening and closing time， fast and effective. Body symmetry， better able to withstand the stress from the pipe.

-Adapter for connecting air pump， trachea， Airbrush different caliber.