Replacement projection surface for Open Air Cinema inflatable movie screens. Choose your screen size (12ft by 7ft, 16ft by 9ft, or 20ft by 11ft Projection Surface) and model. The difference between Pro and Home surfaces is the zipper type: Pro surfaces use a large heavy duty zipper, and Home surfaces use a good quality but different zipper. Each order includes black ropes cut and looped, matched for the bottom and top ropes of your screen size — a total of 8 new black ropes that replace the old, used, dirty white ropes with clean black ropes that never appear dirty, even after years of use.