The Sure & Secure Double Bedrail from Summer Infant is an essential item for your child when transitioning them from their crib to a bed. Security, ease of use, and value all in one great item. For added convenience this bedrail only needs minimal assembly, due to new regulations, for a quick installation. It fits twin and queen sized mattresses. The bedrail fits box spring or platform style beds and measures 42.5?Lx20?H. This Double Bedrail has one panel that folds down for easy access to the bed or to change linens. The blue fashion blends well with many different room d?cors.