Feature: 1. Copper, Plastic: Made of copper and plastic, this terminal strip block is strong and durable. And the screw is conductive and strong. 2. Pre Insulated: Each pair of terminal block is insulated from each other to prevent circuit clutter, safe and efficient. 3. Fixed Screw: Fixed screws ensure reliable contact of the wires and help prevent accidental contact with the terminals. 4. Easy Operation: There is a fixed mounting hole at each end for easy installation. Choose the direction that is convenient for you to install. 5. Protective Cover: Our terminal block includes a clear cover to defend accidental touching of the terminal. It will be more safer when the terminals are protected by snap in plastic lids. Be careful when mounting these covers. Specification: Item Type: Terminal Strip Block Material: Copper, Plastic Color: Black, Silver Purpose: Circuit Link. Package List: 1 x Terminal Strip Block