The Riverstone Shade Cloth System with Corner Grommets - 6 x 18 ft. is a smart and easy way to keep any outdoor space cool when it’s hot out. Crafted from black polypropylene strands, this amazing shade cloth system utilizes UV-stable material to keep any outdoor space cool and useful. Perfect for greenhouses, this revolutionary shade-cloth system is a great way to extend your growing season, reduce moisture loss and protect your plants from birds or scavengers. The ventilated design allows ample natural airflow to keep the enclosed space filled with fresh air and a water permeable design permits rainfall and irrigation. On top of everything, this commercial-grade shade cloth system was crafted with an easy-setup design that requires no tools. Simply set up the structure, secure it with the included rope and enjoy. About Riverstone Working from the motto, ""Green Products for a Brighter Future,"" Riverstone Industries was born from the desire to bring products that were good for the environment to the mass markets. Their mission is to solve problems through innovation and function while keeping value and customer service at the forefront of their thinking. Riverstone prides themselves on offering innovative improvements to existing products currently found in the marketplace. Riverstone has maintained a position of outstanding quality and customer satisfaction through the years, ensuring their growth and expanding their current stature. * UV-stable cloth - cools space for plants or animals * Woven black polypropylene strands * No-tool assembly for quick, easy setup * 24 rust-resistant brass grommets * Choose from numerous shade-blocking percentages