For 2 years now, I've had a hard time sitting/standing/moving due to tight muscles from working out all the time and sitting at a computer for work/gaming. Stretching never really loosened my muscles up fully, and massage therapy is expensive, time consuming, and doesn't always seem to work. I saw someone using one of these and decided to give it a try. 20 minutes into using it and I could balance on each foot again(wasn't able to before). This thing feels solid/very premium and it's no wonder the reviews for it are glowing. A MUST BUY! I'm not kidding, you will be so glad you did!