Powder-coated aluminum frame is rust-resistant and robust Metal feet with pre-drilled holes enhance the stability High quality yarn-dyed fabric is waterproof and sun-proof Easy to open or retract the canopy with rope loop 5 flexible pulleys on each side help control the canopy freely Safe locking system helps lock the closed canopy 2.9 X 3.6 m large shade is perfect for BBQ, parties, picnics Classic design fits well with garden, poolside, yard, etc Easy to assemble with clear instruction and assembly video