An universal locking bracket type solar shades for ship’s bridge and wheelhouse windows. The screen has 100% optical clarity and industrial strength is 5 MILS. The surface of screen is scratch resistant by coating on inside surface, and there are two patterns of screen rolling method, “Spring roller” or “Clutch springless roller”. Both 3” strips (Outside mount) and 3” flanges (Inside mount) are included with every order, so that the hem bar of the screen and flanges attached to window recess are secured with Velcro tape from swinging. Please specify the size of window, type of screen rolling method, etc. Please ask more information to your local distributors when ordering. Spring Roller: Pull hem-bar to raise and lower shade. Clutch Springless Roller: Loop of nylon bead-chain rotates roller to raise or lower shade.