Review (5/5): Work out the knots in your forearms
These little jade stones work very well for working out knots in small areas. In particular I find most people have lots of trigger points in their forearms. This works great for self treatment. I usually use it with a little bit of analgesic lotion. These aren't as rough as more traditional guasha tools. It's hard to induce bruising but works well and is more to Western taste in that regard.