Central hub for easy one hand open and close operation.100 sq. ft. of coverage area for up to 12 people.Infinite legs for any height adjustment.Ball joint feet enables easy leveling for any terrain.No assembly required 1-piece powder coated steel frame.UPF 50 plus fabric top provides great shade and sun-protection for UV rays.Air vent allows air flow and temperature control.With easy cliping system. Always attach it to the eave to prevent water accumulation.[NOTE]: NEVER leave your shelter unattended. They will blow away or collapse in heavy wind or rain. ALWAYS take down when a storm is approaching.When is use,always take down your canopy with both the included stake as well as the guy ropes provided.[OUR PROMISE]: Experience our amazing customer service! We are here to support your canopy. We are available around the clock to help correct any problems or questions you might have with our Crown Shades products. Please note that our products are designed for daily use to protect from the sun and light rain. Please fully anchor your canopy to the ground to avoid damage.