1、High Quality Material: Made of high quality PVC and nylon flame retardant materials, waterproof and anti leakage, more safer to use. The brass terminals with good electrical conductivity. 2、Firm Wiring: Strong shock resistance, firm wiring is not easy to loosen. Easy to plug and unplug, not deformed, and can be plugged and unplugged multiple times to quickly replace failed components. 3、With Storage Box: The wire terminal assortment comes with a storage box with separated lattice, you can easily identify where the different terminals are located, more convenient to use. 4、Excellent Performance: The heavy duty wire terminal kit features the performance of exquisite quality, small size, light weight, insulation and waterproof, good sealing, easy installation. 5、Durable in Use: The crimp terminal has excellent resistance to high temperature and aging, and it also has anti leakage and anti-rat bites to protect the interface after being firmly wired.