A 30cm metal ruler. The PNG file may look terrible in the thumbnail, but both is alright in the download. ------------------------ Changes: * 10th August 2008 * - Changed copies of images to linked clones, saving lots of size. - Added fine text ("mm", "cm" and "0.5")
30厘米金屬尺
office、ruler、tool
辦公室、統治者、工具
資料來源：openclipart ( https://openclipart.org/ )