The foam roller is a simple and cheap tool that can be used for self-myofascial release — or simply called self-massage. It reduces muscle soreness, muscle tension and the time needed for recovery after exercise. Also it increases range of motion and blood flow.
The foam roller has a core of a cylinder shape and it is covered with foam. The material of the core, the length of the foam roller and the foam density and shape is different on every product — choosing the right one for you can be a hard task.
I started using one about ten months ago — and never stopped since. I have tried a lot of things during the years to help me with my trainings, but most of them failed after a while. The foam roller is one of the best tools I have ever used and I recommend it to anyone. I use it on a daily basis and it helps a lot to release the tension in my leg and back muscles.
To effectively use it you have to pick the right one for your needs than learn to use it properly.