This economical ruler constructed from transparent acrylic plastic that lets you see the page underneath clearly for easy and exact placement on the page, and a bevelled edge that makes it easier to draw with a pencil or pen. There's a scale in both metric and imperial measurements for measuring up to 300 mm or 12 inches. Transparent desktop ruler Durable acrylic construction Bevelled edge for easier drawing Millimetre and inch scales Length: 300 mm (12 inch) Pack of 20 rulers Please Note: The image used for this item is for illustration purposes only, as a white box product it may appear slightly different to the online image