Coolaroo Outdoor Cordless Sun Blocking Roller Shades combine our breathable knitted fabric and easy to use wand operated crank mechanism to provide the ideal outdoor shade product. Using our unique high density polyethylene (HDPE) knitted fabric these roll up blinds block up to 90-percent of damaging UV rays keeping your family and friends safe and comfortable all year round. The construction of the knitted fabric allows for constant air flow which can substantially reduce temperatures and ultimately help you save up to 40 percent on energy costs. For both indoor and outdoor use, these weather and fade resistant roller shades made with durable aluminum head rails and heavy duty HDPE fabric ensure use and enjoyment for years to come. We pride ourselves on our products, therefore to ensure longevity we offer a limited lifetime warranty for all roller shade products. Light filtering capabilities help reduce the sun's glare without darkening a room's interior or outside space. Available in a variety of sizes and colors, these sun shades provide a fresh, unique, and stylish addition to any décor. We recommend that when the crank is not in use, it be stored away from salt air elements.