L-SHAPE DESIGN: With a right angle & a straight edge, this ruler makes measuring easy; ideal for measuring narrow ranges or angles on buildings or objects; the design has a secure hold, supporting accurate measurements DOUBLE SIDED: This square ruler has markings on both sides, making it easier to read precise measurements while working; no need to flip the ruler over or twist it while working to read it METRIC & IMPERIAL: Supporting accuracy, this ruler has clear marking scale markings in both cm & inches, so you can choose your reading depending on which unit of measurement you use in your work, supporting precision STAINLESS STEEL: Made from durable & long-lasting stainless steel, this professional-quality ruler is designed to be used again & again; it is suitable for indoor & outdoor use & does not bend or break MULTI-USE: This heavy-duty tool is perfect for engineers, builders, architects, carpenters & craftsmen; it is suitable for use in draughting, woodwork, metalwork & dressmaking; it is lightweight & easily portable