The reading and writing process is accompanied by stationery such as bookmarks and gauges. When writing on white paper without a line grid, most people can't write because they don't have a reference line and feel frustrated. The multifunctional gauge is carved from PP translucent plastic and printed with a scale. The multi-function ruler simplifies complex problems, and one item realizes multiple needs. The clever design can extend the scale of the ruler, and also has the function of bookmarking and auxiliary writing into lines. Reading and writing process with bookmarks, rulers and other stationery. In the absence of a line of white paper to write, most people do not line up because there is no reference line, and feel depressed. The multifunctional ruler will simplify the complex problem, and a variety of items can be realized. The design of the utility model can extend the scale of the ruler, and also has the function of bookmark and auxiliary writing.