HONEYWELL MICRO SWITCH LSZ55W Roller Lever Arm, 1.5 In. Arm L. More details: Roller Lever Arm, Arm Length 1-1/2 In., Roller Dia. 1-3/5 In., Roller Width 1/2 In., Arm Material Steel, Roller Material Rubber, Arm Depth 1-25/64 In., Arm Width 1-39/64 In., Roller Position Offset, For Use With Mfr. No. LS, HDLS, HDLS Fully Potted, HDLS Stainless Steel, GLA, BX, BX2, CX, LSX