FREE delivery (0.01 for books) to pick-up point (depending on item eligibility). Details High Security: High Security: These clamps are made from a 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 connectors can be automatically adjusted with wire thickness, making the wire connections vibration resistant and maintenance free. Easy operation: no tools 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, communication systems and security alert systems. Great Value Set: There are a total of 60 pieces of reusable pliers, including 30 pieces of 2-way clamp, 20 pieces of 3-way clamp, 10 pieces of 5-way clamp. All in one box. Easy to transport and good value for money.