Sun Shade Blocks over 90% of harmful UV rays Made of a dual-layer lightweight mesh/ PVC material that securely clings to your window with no suction cups required Pop-open design’s lightweight, reinforced construction easily folds for storage Soft-Twist Safety Frame–protective safety tube encloses flexible metal frame for added safety and durability Includes two 13.75 in. x 20 in. (34.9 cm x 50.8 cm) shades for maximum coverage Fits most windows