Description This Premium Adjustable Quick Square Layout Tool has a base length of 10-3/4 and a rule length of 6-3/4. Its adjustable design can be used as a guide, bevel or protractor. Comes with an adjustable arm. Perfect for woodworking, DIY, handcraft, home decoration, etc. Features - Color: Black.- Material: Aluminium Alloy.- Size: About 17.7 x 17.7 cm/ 7 x 7 inch(LxW).- Good Quality, Quick Read, Hand-Protect, 0-90 degree scale.- Wide base helps provide better grip on materials.- Durable deep stampings; white markings on blac.- Comes with rafter conversion table.- Perfect for woodworking, DIY, handcraft, home decoration, etc.Packing list: 1 x 7-Inch Premium Rafter Square Quick Square Layout Tool (Black)