Honeywell LSZ52C MICRO SWITCH™ Heavy-Duty Limit Switches: HDLS Series, 38 mm to 89 mm [1.5 in to 3.5 in] Adjustable Length Roller Lever with Ø 19 mm x 6,35 mm [0.75 in x 0.25 in] Nylon Roller, Front Roller Mounting