Features: The foldable design, open the scaled sliding rulers on both sides, can be used to assist the suspension of larger paintings, and has a wider ranges of uses. Has a magnetics horizontal buckle and a horizontal bubble, and the design of magnetics suction and card slot insertion can make them more fit. The storage box at the bottom is equipped with magnetics marking nails, which can accurately mark the position that needs to be hung. The bottom of the upper part of the product is equipped with sponge gasket, which will not scratch the wall during use and keep the wall intact. The operation is simple and convenient, and it is suitable for hangs installation of clocks, mirrors, calendars, photo frames and other items.