Check the listing for details. E.gerber 100 Half-backs Standard Comic Size - 7” X 10-1/2”. Color: Silver, Condition: New. Listed at 30.27 USD. E.gerber 100 Half-backs Standard Comic Size - 7” X 10-1/2” ✓ Free 60 Day Returns ✓ Free Express Shipping Description: Half Back acid free backing boards are the highest quality backing board available anywhere! Made from 100% acid-free, 24 mil thick cardboard to ensure extra rigidity and protection. Produced with a 3% alkaline buffer throughout and maintains ph of 8.0+ to further ensure the preservation of your collectible. Meets strict U.S. Government standards for archival storage. Features: Product Details: Material: Mylar, Wood, CardboardBrand: E. GerberItem dimensions L x W x H: 10.5 x 7.5 x 0.24 inchesColor: WhiteShape: RectangularItem Form: ‎SheetItem Weight: ‎3.2 PoundsUPC: ‎603259000908Manufacturer: ‎E. GerberItem Weight: ‎3.2 poundsProduct Dimensions: ‎10.5 x 7.5 x 0.24 inchesItem model number: ‎700HBIs Discontinued By Manufacturer: ‎NoMaterial Type: ‎Mylar, Wood, CardboardTotal Recycled Content Percentage: ‎100Size: ‎7" x 10.5"Manufacturer Part Number: ‎1Date First Available: January 31, 2014