Stainless steel has more weight = more benefits! I also use the gua sha to reduce tension when I have a headache, and also to relieve jaw pain. It’s also great for really tight muscles. Soo many uses! Stainless steel is cooling, but you can pop it in the fridge for a few minutes for extra cooling on days where you want that feature or have extra puffiness. I use mine separately. The instruction pamphlet is very detailed and so helpful! You will love this set! Grab yours by clicking the shopping cart on this video #renachris##guasha#facialcare@RenaChrisOfficial #releasestress#tensionrelease#facialroller#TCM #grwmchallenge #mothersday #fypage