HIGH-QUALITY GROUNDING PILLOWCASE- Made of 90% cetificated organic cotton with 10% silver fiber which can reach baby level and is softer. Non toxic, more comfortable and healthier EASY TO USE - Connect one end of the grounding wire to the connection point on the grounding sheet. Insert the other end of the grounding wire into the grounding hole TARGET USERS - Grounding Pillowcases can be used for people who has poor sleep quality, RA pain, Back pain, swollen hands, headache and joint pain. Also good for pregnant women and baby USE SECURELY - The grounding cord has a resistor of 100k for safety. The measurement range of your multimeter need to be greater than 100k, otherwise you will not obtain the correct readings TIPPS - When using grounding products, make sure your skin is in contact with the grounding products to enjoy the benefits of grounding