Feature●CONVENIENCE: Ideal for marking cut lines on board materials with Imperial unit, for those who use the English system. T ruler (48in), perfect for architects, engineers and artists, or DIY at home.●PROTABLE: 48-inch drywall square designed for durability and easy use. It can be adjustable and easy to storage.●FUNCTION: Large, adjustable tensioning knob locks securely to allow angled measurements ;Angle markings 30°, 45°, 60°, 75°when measuring . and you also can use it as a straight ruler.●MATERIAL: Anodized aluminum finish,Heavy-duty aluminum blade and UV printing scale line.●WHAT YOU GET: 1pc aluminium ruler, 1pc plastic folding ruler,1pc pencil.Description