DescriptionMade of plastic material, this square ruler is durable and practical for long-lasting use, featuring T type and 360 degrees design, suitable for testing the vertical surface of the work-piece, testing equipment, design layout, model making, etc. Compact size, lightweight and portable, convenient for you to carry.Features- Color: Black. - Material: Plastic. - Size: 25.00X4.50X2.00cm/9.82X1.77X0.79in. - Double-sided scale, the scale is clear and resistant to wear. - Woodworking T-shaped square ruler, mahogany handle, tightly stitched. - Suitable for vertical inspection of machine tools, carpentry, decoration, mechanical equipment and parts.- Stamping scale, light and convenient, good compression resistance, no rust and deformation, strong and durable. - Used to detect the perpendicularity of the work-piece and the relative position of the work-piece. Used for line drawing.