HIGH SAFETY: These pliers are made of insulating modified nylon 6.6 and tinned copper compatible high flammability and high conductivity. They are waterproof, corrosion and aging resistant. Reliable connection: thanks to the spring-clamping technology, the clamping compatiblece of the connectors can be automatically adapted to the thickness of the wire, which makes the wire connections resistant to vibrations and maintenance-free. Easy to use: no tools required. Just lift the lever 90, put the wire in and push the lever back down. It greatly facilitates your work. Each clamp has a test opening which makes it easy to test and wait. Universal connectors: they are suitable compatible solid and twisted conductors from 0.08 to 2.5 mm2 and flexible conductors from 0.08 to 4 mm2. Ideal compatible lighting systems, building wiring, communication systems and security alert systems. Large selection: there are a total of 60 reusable connection terminals: 20 x 2 terminals, 30 x 3 terminals, 10 x 5 terminals. Everything is in a box. Easy to wear and inexpensive. With this set of 60 pieces. Connection terminals compatible all types of ladders allow you to easily connect wires from 0.08 mm2 to 2.5 mm2 (4 mm2). The lever allows easy opening and comcompatibletable insertion of the ladder. The clamp is corrosion resistant, aging resistant, leak resistant and provides a vibration resistant and maintenance free connection. They can be used up to an ambient temperature of 85C. Moreover, they are reusable. Set Includes: 30 Pack 2 Pole Terminals (2.1 x 1.3 x 1.5cm). Pack of 20 3-pole terminals (2.1 x 1.7 x 1.5 cm) Pack of 10 5-pole terminals (2.1 x 2.7 x 1.5 cm). Spezifikation:Specifications: Rated voltage: 250 V. Rated impulse voltage: 4 KV. Rated current: 32 A. Cross section (solid conductors and strands): 0.08 - 2.5 mm2. Cross section (flexible conductor): 0.08 - 4 mm2. Band length: 10-11mm. Service: 1. Strip 10-11mm of the cable sheath 2. Lift the lever 90 3. Insert the wires 4. Press the lever down become very rich