Pushwheel Switches with Dust Proof Casing are made from high grade polyamide. These Pushwheel Switches are provided with two independent push buttons for forward or reverse movement. These Pushwheel Switches are available in two types such as PS-B10 - for Decimal to BCD and PS-110 - for Decimal One Pole 10 way out. These Pushwheel Switches with Dust Proof Casing are also available in extended PCB for mounting decoding elements on the switch itself.