kabouqi Grounding Sheet, Calking Size Grounding Flat Sheet with 5% Silver Fiber Grounded Bed Sheet Earth Product for Improved Sleep & Stress Relief (Calking - 72"*84" Gray) Gray California King is up for auction in Home & Kitchen. The current bid is $2.00, 93% below the $29.52 MSRP, in New/Like New condition. This auction has ended — similar items appear in live auctions regularly.