This Large 10 sided Outsunny heavy duty gazebo is a great item to have to create an extended area for any occasion or party. The whole structure is made of a steel frame with no internal columns, the side walls and window walls can easily be attached and removed using elastic ball attachments. Each of the side panels can be strapped down or tied back to let air and sunlight in. This is a great product and design for use in any occasion.Features:Elegant decagonal (10-sided) design party tentQuality, rust resistant steel frameworkHeavy-duty metal corner connections add extra stabilityLong-lasting water-resistant polyethylene coverBlocks up most harmful UV rays, keep you cool and comfortableSteel roof cranks with over-winding protection for draining accumulated waterAssembly required