Specification:Material: cotton fabric+silver fiberColor: primary colorSize: (3 Sizes optional)27*52/68*132CM60*80/153*203CMFeatures:- Durable and will hold up to hundreds of washing and dryings on the low heat setting.- Our kit incorporates a 98k ohm resistor that acts as a safety fused link but more importantly it creates a more organized exchange of Earths electrons and better grounding effect.- There is definitely a more powerful feel with a 98k ohm resisted link. - Extensive research has shown that a 98k ohm resistor matches the same ground potential of the human body for a better results.HOW TO USE THE EARTHING Fitted sheets.- Step 1: Check Your Outlets For GroundConnect it to the ground port of a grounded 3 prong outlet. Before plugging in your Earthing product, check if the outlet is grounded by plugging in the outlet checker.- Step 2: Setting Up The Fitted Sheet1. Place the Earthing sheet over your mattress.2. Insert one end of the Earthing cord into the ground port (third hole) of a properly grounded wall outlet or connect to cord of an Earthing ground rod placed in the Earth outside.3. When you lie down on the connected sheet, any bare skin contact will transfer the Earths energy to your body once you connect the sheet.- Step 3: How To Wash and Care For Your Earthing Fitted SheetWashing it by hands in cool pure water.