Time Switch Trippers Replacement: - Timer tripper replacement also compatible with for time clocks models: T101, T102, T103, T104 AND 102-20 AND 104-20, T104M, T104R, T101M, T101R; Compatible with 156T3492A WH Series 156T1961AInstrument Usage: - Compatible with for T100 Series use 1 silver ON tripper and 1 gold OFF tripper; For all other models: use 1 silver ON tripper and 1 gold OFF tripper; Package includes 6 Pair Timer Switch Kit and 12 set screwsCompatible Model: - Our replacements compatible with for time switch models: T100 Series, 1A219, 1A220, 1A573, 1A850, 2A208, 2A209, 2EO21, 2EO22, 2EO23, 2EO25, 2E214, 2E258, 2E259, 2E351, 2E352, 2E353, 2E354, 4A213, 4EO23, 4EO24, 4EO25, 4EO26, 6X757, 6X759, 6X760, 6X767, 6X768, and 6X769Easy to install: - Please loosen the fixing screw on the trip unit, slide the trip unit to the timer dial for on/off action at the required time, and then tighten the fixing screws; Please make sure that the correct time is under the current time pointerMaterial: Metalcolour: silver+goldPackage Contents: 6 Pair Timer Switch Kit12 x screwOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.