1.3D joystick 2. potentiometer joystick 3.standard resistance is 5k and 10k.We also could make as customer's need. 1.3D joystick2.model:OM3003. potentiometer joystick4.standard resistance is 5k and 10k.We also could make as customer's need. 5.dust proof type. A type, B type. C type. D type and so on,6.spring return or withour spring return.