4 pcs InstaHibit Universal Sidewall Panels include 1 pcs 15×7 ft sidewall with zipper, 1 pcs 15×7 ft sidewall and 2 pcs 10×7 ft sidewalls without zipper, which fit most of 10×15 ft canopies. Made of 550D 155g Oxford fabric with PU coating, it features UV50+ protection and CPAI-84 flame retardancy, protecting you from wind, sunray and offering privacy in the outdoor.