Heavy-duty carbon metal structure with reinforced truss plates increases the sturdiness. Sturdy stakes & wind ropes anchor bases with stakes work together to add the stability. Sandbags(sand not included) with 22 lbs/10 kg capacity further enhance the wind-proof performance. 420D oxford fabric with PU coating is water-resistant and sun-proof. Storage bag with 2 roller wheels allows for labor-saving movement. Easily attach the canopy cover with fixing hooks. 3-level height adjustable button enables quick height adjustment. Easy to lock or release the metal frame with corner lock buttons. Portable for different occasions such as sports events parties picnics or flea markets. WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. See www.P65Warnings.ca.gov.