Black leather is a material that looks like skin, but it actually comes from cows. To make black leather, people first take the skin of a cow and then they clean it very well. They put the skin in a special mixture that has chemicals that help make the leather stronger and resistant to water. Then they stretch it out and dry it. Once the leather is dry, they use a special dye to make it turn black.
This black leather can be made into many things, like jackets, belts, shoes, and even furniture like sofas. Black leather is popular because it looks cool and can match with many different colors. It's also very strong and can last a long time if you take care of it properly.