This replacement canopy perfectly fits 10 ft. 8 rib umbrellas, suitable for 8 panel canopy with rib length from 56 in. to 58 in. The top hole is about 1.2 in. and can be trimmed to fit. It is recommended to measure your umbrella rib count and frame size before selection. Made of 300D high density polyester fabric, the canopy resists fading, tearing and harsh weather, providing reliable protection against sun, rain and wind all year round. Installation requires no tools, simply attach the canopy to the existing 8 rib umbrella frame via reinforced rib pockets and secure tie cords with full installation guidance included. This replacement patio umbrella canopy works with 10 ft. 8 rib hanging offset, cantilever and market umbrella styles, and does not fit double tiered umbrellas. Available in classic khaki, navy blue and peacock blue, the fade resistant colors keep a fresh look for long term outdoor use and easily upgrade patio decoration.