Limit Switch Lever Arm, Actuator Type Adjustable Roller, For Use With 11X439, 11X440, 11X444, 11X446, 11X451, 11X454, 11X486, 12T835, 12T836, 12T837, 12T886, 12T887, 12T888, 12T889, 12T895, 12T896, 12T897, Mfr. No. 11X445, Arm Length 1.50 in to 4.63 in, Roller Position Front, Roller Dia. 0.63 in, Roller Width 0.25 in, Roller Material Steel, Arm Width 1.19 in, Arm Depth 1.25 in