Case body moulded in high-impact ABS, also, Custom popular ABS available.Better airtight ,water proof and Anti-corrosion performance ;protect your instrument even under theadverse environment. Custom the free compartment very convenient because of the foam pre-cutted grip.Have a knob with o-ring for manual pressure adjustment. Latch of changhe is an single plastic component, It wont get lost even under higher impact. Have a recessed area for a label in the top of cover and in the bottom of body. With a bezel kit available, the bezel kit must be ordered serparately.We can also supply good quality plastic injection moulds and die mould for making all kinds of cases.