The Draper 241102 63.5 x 114.5" Ultimate Folding Screen with Heavy Duty Legs is unique in its design. It is manufactured with 100% CNC (Computer Numerical Controlled) components and assembly. All the included tubing is machined and cut to precision. Even the rivets and snap holes are tightly controlled during production. The Ultimate Screen is a wonderful additional to any school or business that requires a reliable and easy-to-use screen but does not want a permanent installation. The heavy duty wheeled case is made from polyethylene and is a breeze to travel with - and also provides maximum protection for the components. The Heavy-Duty Legs offer extra stability and keystone elimination which the Standard version of this screen does not. The system is easy to use using Draper's innovative Lock & Load latches which make set up and break down simple. These latches hold the fabric firmly in place and give the screen its rigidity. In addition, the latches are internal and designed to fill the entire tube giving them additional protection. In this way, you'll get a longer life span for the system - a real financial benefit. Couple these advantages with clear anodized 1.25 x .070" wall aluminum tubing and you've got the precision and stability that allows Draper to offer the Ultimate Folding Screen in sizes through 12x16'.