brand new and high quality Features: Applicable people: students and proffesionals such as architects, engineers, carpenters and other technical drawing usage. 1.25cm high for protection board to avoid accidental cutting knife damage caused. At the bottom of the mat even in the smooth surface of the work is not easy to ensure the stability of cutting and marking. Anti seepage, structure marking can be avoided when the ink penetration caused by the phenomenon of ink drag. Aluminum alloy oxidation treatment, lightweight design,suitable for office and home use. It can be used as a straight ruler with anti-skid strip at the bottom for stable use. Protective Ruler only, other accessories demo in the picture is not included. Specifications: Material: Aluminum Alloy Length: 20/30/45cm Width: app.3.5cm/1.38in Height: app.1.25cm/0.49in Color: Red Quantity: 1 Pc Note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Content: 1 x Protective Ruler