1.[Foldable to Straight]:Our 2 set multi-function foldable level can be folded as a rectangle-shape block to 5 inch for daily storage and a regular straight level ruler to 28inch for pipes, or on stairs and corners 2.[Strong Magnet]:High precision folding level with built-in strong magnetic side to be attached to any iron(like steel materials) to hold in place with no fear of falling.Easily your hands and for steel construction work. 3.[Leveling In Straight or Corner]:This foldable level measuring tool has 4 standard bubble vials(0-180°,90°and 45°) with front,back read easily and can be bent to any angle which meets the needs of precise leveling in any position,such as as a straight edge,around corners 4.[Wide Application ]:The multi function foldable level is suitable for construction,woodworking, personal wood processing, decoration,also a home level measuring instrument. such as measuring locations on a wall, space between hangers, level the nails,hang picture,measure pipes, stairs and corners,window level measurement ect. 5.[Saving Toolbox Space]:The bubble level has hanging hole and compact mini size and light weight makes magnetic bendable level tool easy to storage and carry mini level to anywhere with little space. 6.[Compact & Extended Level]:The water level tool can fold or extend to use multi functional.Extendable level size is 23.5 in. x 2 in. x.75 in. and can be folded as a rectangle-shape block 4.75 in. x 3.6 in. x 3.75 into toolbox.