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