Installation is a breeze. There are screw holes at each sides of the terminal blocks, you just need to fix them with screws and connect cables. Our terminal blocks, to meet your different needs of wiring on machinery, , home appliance, computer or other automatic equipment. Features - Color: Black, red. - Material: Plastic - Size: 7.30X2.20X1.50cm/2.87X0.86X0.59 inch. - The terminal blocks are made of , with excellent and impact resistance. - Good and excellent electrical conductivity, simple appearance, sturdy and . - The dual row terminal blocks are designed with screws, you can crank down on them for a firm bite. - Also with insulated cover design to prevent accidental touching of the terminal, safe and reliable. - Reasonable structure design and good craftsmanship will ensure its durability and practicality. Package list: 5 x Terminal Blocks 5 x Black Pre-Insulated Barrier Strips 5 x Red Pre-Insulated Barrier Strips