The fabric gives excellent protection against the sun’s UV rays as it has a UPF (Ultraviolet Protection Factor) rating of 50+, which means it blocks 98% of the ultraviolet radiation. The parasol is easy to open or close by using the crank. The air vent reduces wind pressure and allows heat to circulate. Easy to keep clean as the fabric can be removed and washed. Assembled size Height: 295 cm Diameter: 400 cm Pole diameter: 48 mm