Upgraded Mouth Guards for Grinding Teeth at Night, 2 Pack, Standard Size, Professional Night Guard with Fitting Tray, Comfortable Mouth Guard for Clenching Teeth at Night Blue is up for auction in Health & Household. The current bid is $4.00, 60% below the $9.99 MSRP, in New/Like New condition. This auction has ended — similar items appear in live auctions regularly.