Experience an ancient Chinese method of hygiene. This Gua Sha Stone can increase the flow of blood, lymph, and body fluids, improving the overall health of your body. Make you less stressed and more energetic. • Handmade with 100% natural, durable premium jade stone. Very smooth surface, won't hurt your skin • Full body care: acts well on the face, neck, back, hand and feet, helps release muscle tension, tightens the skin and delays the onset of visible skin aging.