Limit Switch Lever Arm, Actuator Type Standard Roller, For Use With 4VZA2, 4VZA4, 4VZA5, 4VZA6, 4VZA8, 4VZC4, 4VZC6, Mfr. No. 4VZA3, Arm Length 2 in, Roller Position Offset, Roller Dia. 0.78 in, Roller Width 0.27 in, Arm Material Zamak, Roller Material Metalic, Arm Width 0.8 in, Arm Depth 0.84 in