THE BLOCKER PRO IS A FRONT PANEL EQUIPPEDWITH ONE LARGE FULL LIGHT CRYSTAL WINDOW AND VINYL EXTENSION TO THE FLOOR.SIMPLY SLIDES ALONG THE GUIDE RAL OF THE CANOPY AND TIES ONTO THE AWNING,S LEGS FOR STABILITY. IT GIVES YOU MORE PRIVACY AND MORE PROTECTION FROM THE WIND. MADE OF ANTI ROT VINYL, WASABLE FABRIC WITH UV PROTECTION. COMES WITH ELASTIC HOOKS AND PEGS.