HONEYWELL MICRO SWITCH 6PA71 Roller Lever Arm, 1.5 In. Arm L. More details: Roller Lever Arm, Arm Length 1-1/2 In., Roller Dia. 3/4 In., Roller Width 1/4 In., Arm Material Cast Zinc, Roller Material Nylon, Arm Depth 3/4 In., Arm Width 3/4 In., Roller Position Front, For Use With Mfr. No. LS Series