ITEM NAME:Mushroom Shaped Massage Stones Warmer Natural Lava Basalt Hot Rock Guasha T V2A9 Mushroom Shaped Massage Stones Warmer Natural Lava Basalt Hot Rock Guasha T V2A9 Quality Material : Made of Basalt Stone, stable and smooth, have great heat retention, perfect for spa and massage therapy. it will improving your body.Quality Material : Made of Basalt Stone, stable and smooth, have great heat retention, perfect for spa and massage therapy. it will improving your body condition, promoting blood circulation. Application: the Massage Stones works great on neck, face, back, shoulder, leg and foot, a useful massage tool, suit for Graston SPA Acupuncture Therapy.