What You Get: Set include 15 kind of USB jack socket connector total 180pcs, there are enough type and quantity to meet your needs. Product Material: The shell is made of environment-friendly plastic; USB connectors are made with gold flashed brass contacts. Durable for long time serviece. Easy to Use: These USB connectors are very easy to use, no other tool needed, you can use them to DIY usb adapter or make your own USB cables, sometimes soldering is required. Product Feature: The main color is black and white. Main type is USB A female USB A male. They are compact, lightweight, work great for computer and phone. Widely Application: These standard USB plug connector can be widely used in computers, mobile phones, USB-CD, mouse, keyboard, chargers and so on.