Features 1. : The end of the heavy-duty battery cable is made of copper with good conductivity, heat resistance, and corrosion resistance to ensure the reliability of the connection. Surface acid washing can reduce oxidation. Standard terminal block openings facilitate wire insertion. The design of the inspection window can check whether the cable is inserted correctly and completely. Each wiring ear has specification markings, so you can quickly find the correct terminal. Copper wire ears can be conveniently and safely crimped or welded onto cables. 2. Easy to install: The battery terminal block can be used in conjunction with a heat shrink protector for power supply or grounding, ensuring safe and reliable wiring and professional operation. Flame retardant insulation heat shrink tubing is made of polyolefin and can be pre cut into commonly used sizes for selection to improve work efficiency. Crimp or weld the cable onto the copper ear, insert the heat shrink tubing, and heat it up. It can quickly shrink and wrap the cable well. The alternating red and black colors enable us to quickly identify positive and negative cables. 3. Copper Ear Kit: In the electrical field, various sizes of wire ears are required to transmit sufficient amperage between components. The 150pcs wire connector kit has various terminals for you to freely choose from, and the ring terminal kit can help you connect tightly with cables more easily and safely. Please note that when crimping, be sure to choose a copper wire that matches the diameter of the wire connector. 4. Wide application: The battery cable end is a connector between wires and electrical equipment, which can play a role in stable installation, effectively preventing short circuits and poor contact. It is suitable for emergency cable maintenance. We recommend this wire ear kit for terminal wiring of professional equipment, such as distribution boxes, batteries, cables, etc. It can also be used for speakers, motorcycles, cars, ships, household appliances, toys, solar energy, etc. 5. Portable and well-organized: The battery cable ear group is easy to carry around. They are neatly separated and protected in a storage box. You don't have to worry about confusion. We suggest checking the size of the wire lugs before use to ensure they are suitable. If used together with good crimping tools or welding guns, this copper wire ear kit can perform electrical work more effectively. Specification 150PCS specification insert ear AWG 10-1/4 ; 11 pieces, AWG 10-5/16 ; 11 pieces, AWG 8-1/4 ; 11 pieces, AWG 8-5/16-11 pieces AWG 6-1/4 ; 6 pieces, AWG 6-5/16 6 pieces, AWG 4-1/4 5 pieces, AWG 4-5/16 5 pieces AWG 2-5/16 2 pieces, AWG 2-3/8 2 pieces Heat Shrink Tubing Length: 1-3/4 " Φ7 ; (20 pieces in red+20 pieces in black) Φ10 (10 pieces in red+10 pieces in black) Φ16 (10 pieces in red+10 pieces in black) Package Include: Copper Battery Cable Ends Wire Lugs Assortment Kit(150pcs)