: Crafted from lightweight aluminum alloy with an 11 mm diameter and silver finish, this rail provides stable ion. Secure: The 5 cm raised edge s bottles, books, and small items on open shelves, falls and spills. Easy: Installation is simple with pre-drilled holes and all hardware, requir only common tools. Versatile: Suitable for wood shelves, bookshelves, cabinets, kitchen storage, bathroom shelves, and more indoor areas. Sizes: Available in lengths from 36 to 107 cm to accommodate various shelf widths.