The ShelterLogic 10 ft x 20 ft Canopy Extension Sidewall kit is the quick and affordable solution for special events and seasonal protection, Quickly convert any 20 ft long canopy to a fully covered event tent, single or double wall wind break in minutes, Comes ready to install out of the box with steel tent poles and tie downs, Expands coverage are by 280 square feet of protection, SKU: SHLTL104