DOMETIC 105.4309 Ez Slide Topper Polar White 78in. An anti-billow mechanism prevents the cover from billowing during travel. Included with each EZ SlideTopper are screws and an awning rail for quick mounting and installation. Hardware sold separately. Features of DOMETIC 105-4309 Ez Slide Topper Modernized design for clean aesthetics Anti-billow mechanism prevents cover from billowing during travel Includes screws and awning rail for quicker mounting and easy installation Color: Polar White Size: 78" width Package Contents: DOMETIC 105-4309 Ez Slide Topper DOMETIC 98001CQ.078B: 105.4309 Ez Slide Topper Polar White 78in