The Plexiglass Window Kit is easy to install, with each window snapping into place in less than 1 minute. A simple-but-ingenious bungee chord and barrel-lock system allows you to keep the window open at any height you'd like and close it securely. Plexiglass construction for durability Bungee chord lift system Includes 6 windows for the Formex 4' x 6' Snap-Lock Plastic Hunting Blind (WX2-207855)Included Windows (1) 10" x 33" window (4) 10" x 24" windows (1) 10" x 20" window Order yours today!