Limit Switch Lever Arm, Actuator Type Standard Roller, For Use With Mfr. No. 9007MS, Arm Length 1.5 in, Roller Position Inside Offset, Roller Dia. 0.75 in, Roller Width 0.25 in, Arm Material Zinc, Roller Material Nylon, Arm Width 0.62 in, Arm Depth 0.31 in