Milopon Stainless Steel Ruler, Metal Ruler with Conversion Chart, 15, 20 and 30 cm Note: The Ruler With A Squared Angle, Take Care to Avoid Scratches On Your Hand.Universal Ruler with Hole: The Surface of the Rulers is Smooth Without Burr;One end is square, the other is rounded with a hole, to make it easy to slope.The lines are a little inserted into the metal, so they not Rub off during the course of time.Fixed Steel Ruler: Office Ruler is Made of Durable Inn Stainless Steel, but a little flexible, good for long-lasting use.3 Pieces Rulers with Different Measuring Range: The Marked Measuring Langenh is 15, 20 and 30 cm, suitible for different measurements. Milopon Stainless Steel Ruler, Metal Ruler with Conversion Chart, 15, 20 and 30 cmNote: the ruler with a squared angle, take care to avoid scratches on your hand. Universal ruler with hole: the surface of the rulers is smooth without burr; One end is square, the other is rounded with a hole, to make it easy to hang. The lines are a little inserted into the metal, so they will not rub off during the course of time. Fixed steel ruler: Office ruler is made of durable inflexible stainless steel, but a little flexible, good for long-lasting use. 3 pieces rulers with different measuring range: the marked measuring length is 15, 20 and 30 cm, suitable for different measuring tasks.Stainless Steel Ruler, Metal Ruler with Conversion Chart, 15, 20 and 30 cm