Product Name: Latching Switch. Voltage: AC 220V/380V Current: 1A. Thread Diameter(Approx): 10.9mm/0.43 Inch Total Size(): 1.4 x 2cm/0.55 Inch x 0.78 Inch(D*L). Color: As shown. : Zinc Alloy, Plastic. Weight: 11g/Pieces Made of zinc alloy, 2 positions electrical ON/OFF Key switch for simple locking and switching tasks. Package Contents: 20 x Lock Switch, 40 x Keys Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in a little different from the real thing. The measurement allowed error is +/- 1-3 cm.