Check the listing for details. Pack of 12 - Convoluted Foam Sets, 8x6x2" - Charcoal. Color: Gray, Condition: New. Listed at 22.00 USD. Made from open-cell polyurethane foam with a density of 1.2 lbs/cu ft, these interlocking sheets feature 1 1/4" peaks for superior cushioning. Each set includes two sheets with a 3/4" base layer, allowing customization by cutting to fit specific shapes and sizes.