New Velvet Door Draft Stoppers for Bottom of Door, Bottom Door Gap Filler & Seal, Fits 30-36”Under Doors, Easy Install to Block Noise, Sound, Hot Air, Light, Wind (Black, Upgrade Thick Version) Black Upgrade thick version is up for auction in Home & Kitchen. The current bid is $5.40, 73% below the $20.00 MSRP, in Good Condition. This auction has ended — similar items appear in live auctions regularly.