It keeps the parts by self-adhesive of special urethane gel
It can pick up the device even if there is no vacuum device by making it uneven surface
There is a conductive in gel, case, both the tray
You can transport and store while stacking case,both in the tray
Box:54*54*10.4 Clear(10*9 ohm)/black(10*6 ohm)
Tray 50.8*50.8*4 Clear(10*9 ohm)/black(10*6 ohm)