Plug key is a component which acts like a switch. It is a small metallic key which is inserted on the brass blocks to switch on the circuit and if it is taken off from the base then the circuit gets switch off.

• Brass Blocks: 1/2″
• Base: Bakellite
• Dimensions: 9 cm x 9 cm x 5 cm(Round) Approx.
• Brand: OM LABS
• Packing: Card Board box
• Weight: 100 gm Approx.