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Amazon.com: Foamy Foam High Density 4 inch Thick, 24 inch Wide, 96 inch Long Upholstery Foam, Cushion Replacement : Arts, Crafts & Sewing
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3/4 in. x 1.25 ft. x 4 ft. R-2.65 Polystyrene Panel Insulation Sheathing (6-Pack) 150705 - The Home Depot
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