Featuresr 100 polyester canopy well sun shade water resistant durabler labor saving crank winding system to open close umbrella easilyr push up and down to adjust umbrella height and opening angle with a handle to fixr lift slider to extend your parasol inwardsoutwardsr leakage proof wind vent for air flow prevent falling in windy daysr sturdy central pole 6 steel ribs and cross base for powerful support of umbrellar 3m diameter canopy to shade sun for 4 6 seat tables or morer r o