1、[4 LEVEL BUBBLES] The level ruler is foldable, with 4 horizontal bubbles to meet more use needs, and can be folded up for storage when not in use.  2、[WITH MAGNET] The level ruler is magnetic design, which can absorb metal accessories such as screws, convenient for construction use.  3、[DURABLE MATERIAL] Made of ABS plastic, rustproof and durable, ABS connector and TPR end cover can prevent accidental fall, portable and practical.  4、[HIGH ACCURACY] With fine workmanship, the foldable level ruler has high accuracy and good stability, to ensure reliable operation.  5、[WIDE APPLICATION] Used for household decoration, furniture installation, carpentry projects, DIY handicrafts, etc., with strong practicability.