?Yonwold Brand Organic Grounding Sheet 10% Silver ?Unlike other suppliers 5% silver fiber content, Our Yonwold Grounding Sheet for bed Sleeping therapy contains 10% Silver Fiber, which is evenly distributed over the entire surface of the Sheets. Youll get better ground sensitivity and conductivity when your body touches the Sheet /sabanas de conexion a tierra/Blanket.From the germination of cotton seeds to the picking and processing, everything is environmentally friendly and healthy.