American Flyer Stock Yard button control switch, measures 2 5/8" x 1 3/4", has two holes for mounting, two wire clips on the bottom, and one white wire that is soldered to a terminal on the bottom. It has a red push button and a black rotating knob that I have not used the item and am selling it "as is". The switch is used, there is some green paint on the sides, but overall appears to be in good condition.I accept pay pal, contact me if this is a problem. Multiple purchases will receive combined shipping when possible. Email me with any questions. Thanks for looking.