HONEYWELL MICRO SWITCH LSZ52A Roller Lever Arm, 1.5 to 3.5 In Arm L. More details: Roller Lever Arm, Arm Length 1-1/2 In. to 3-1/2 In., Roller Dia. 3/4 In., Roller Width 1/4 In., Arm Material Cast Zinc, Roller Material Nylon, Arm Depth 13/16 In., Arm Width 47/64 In., Roller Position Adjustable, For Use With Mfr. No. 14CE, 914CE, LS, HDLS, HDLS Fully Potted, HDLS Stainless Steel