The chalk line with high chalk retention is a versatile tool that can be used for a variety of applications. It is made of orange nylon and cotton and has a high chalk retention of 50 g. It is also equipped with triple rewind speed, allowing it to be quickly and easily re-rolled. Additionally, it features a coupling function that enables smooth and secure rewinding. The chalk line comes with a hanging loop and a hook, as well as an integrated belt clip. This makes it easy to transport and store.