Quick, easy access to plumbing, electrical, telephone, sprinklers, etc. and lowers the cost of future repairs. Easy to install: just measure, cut, then pop in the panel. Patented, spring-loaded mechanism permits frameless mounting from the outside. High-impact, non-yellowing polystyrene panel is backed by one-year warranty. No screws, latches, fasteners or framework needed. Lightly textured surface accepts wallpaper or paint.