space aluminum construction of the boat shelf resists rust and corrosion, making it a long-lasting storage solution for both indoor and outdoor marine use. Easy to install without drilling, this RV space savers shelf can be mounted on clean, dry walls in bathrooms, RVs, boats, or small living spaces for instant extra storage. RV space savers shelf is crafted from thickened, heavy-duty space aluminum, boasting a stable structure that ensures secure, wobble-free storage for your essentials. Hollowed-out bottom of the rv shelf promotes quick water drainage, keeping your items dry and preventing buildup in humid bathroom or marine environments. Foldable design of this boat shelf lets you extend it when in use and fold it flat against the wall when not needed, effectively maximizing limited space in RVs or boats.