Devardi Glass Lampwork, Beadmaking Highest Quality, TWO Ceramic Fiber Blankets. 1 x 8 x 12 inches Devardi Glass Lampwork Professional Grade Ceramic Fiber Blanket. 2 blankets: 8 x 12 inches. Each 1 inch thick. (comes as 1 blanket 8 x 24, which can be cut) We only sell 8# density blankets for the best insulating, heat resistant quality. Very tough blanket. Made in USA. Please click the blue "Devardi Glass" above to see all our listings.