Wallboard finishing box designed for perfect finishing of butt and flat joint edges, whether applying a first coat or a final finish. Constructed with hard coated anodized aluminum casing, making it , and wear for long-lasting use. Standard flat type size, compact structure, compatible with all mainstream of plasterboard flat box handles. Easy operation with a fixed hinge for quick opening and cleaning, and a back for better hand manipulation. Easy to open by turning the screw counterclockwise, facilitating installation and removal, ideal for home wall painting and finishing., Manufacturer: Akfldms