420D silver coated polyester offers UPF50+ sun protection and wear resistance. Heavy-duty metal frame offers rigid support for the frame. Sandbags(sand not included) further enhance the stability. Stakes and wind ropes fixation ground stakes & base plates anchoring prevent tipping. Including 2 smooth wheels and 1 spare wheel for easy transport. 4 height positions adapt to different people's preferences. Simple setup requires no tools. Pinch-free buttons ensure safe locking and unlocking. Suitable for party camping street vending sports events. 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.