FREE delivery (0.01 for books) to collection point (depending on item eligibility). Details High Security: High Security: These clamps are made of modified nylon 6.6 insulating material and tinned copper for good flame retardancy and high conductivity. They are resistant to current leakage, corrosion and aging. Reliable connection: Adopting spring clamping technology, the clamping force of the connectors can be automatically adjusted with the thickness of the wire, making the wire connections vibration resistant and maintenance free. Easy operation: no tools are required. Simply lift the lever 90, insert the wire, then press the lever. They make the job much easier and neater. Each clamp has a test hole, making it convenient for testing and maintenance. Universal connectors: They are suitable for solid and stranded conductors from 0.08 to 2 .5 mm and flexible conductors from 0.08 to 4 mm. Ideal for lighting systems, building wiring, communications systems and security alert systems. Great value set: There is a total of 60 pieces of reusable clamp, including 30 pieces 2-way clamp, 20 pieces 3-way clamp, 10 pieces 5-way clamp. All in one box. Easy to transport and good value for money.