I absolutely love the kit. I massage my face and neck with my oil using my guasha and roller. Helps relieve puffiness and tension. I also use my guasha to massage my husband when he’s having neck pain. He uses it on me to massage my hip when I’m going through a sciatic flare up. I originally bought these because I fell in love with the engravings. I did not knowing anything about the tools, but did some research and fell in love!