Replacement Boss effects pedal style thumb screws. The Boss pedal enclosure uses a spring loaded lever to actuate the switch, which also doubles as the battery cover. This lever is held in place with a thumb screw. The modern pedals feature a black molded plastic thumbscrew and early vintage pedals and the new high Wazacraft models instead use a slotted nickel-plated brass version that can also be turned with a screwdriver.





