Compression Packing Seal, Thickness 7/8 in, Overall Length 5 ft, Material Ceramic Fiber, Color White, Edge Shape Square, Minimum Temperature Not Applicable, Maximum Temperature 2,300 Degrees F, Standards Not Applicable, Compatible Product Type Not Applicable, Density 75 lb/cu ft, Features Seals are Flexible and Conform to Uneven Surfaces, Square 7/8 in