Dometic’s EZ SlideTopper is designed to stay particles off the roof of your slideout. Stain and mold resistant vinyl development. Extends and retracts robotically with slideout. Measuring: Degree the room part to part and upload 6″, spherical to subsequent longest even part foot (60″, sixty six”, seventy two”, seventy eight” and the like.). This product won’t paintings on slide rooms with an entire extension of over forty two”.