Features:22cm measuring range.Made of plastic material, durable and lightweight.Hollow design, which can draw some alphabet or number.A good measuring tool, easy and convenient to use.Suitable for classroom, school, office, home, etc.Specifications:Material: PlasticColor: BluePattern: Random PatternMeasuring Range: 22cmItem Size: 22.6 * 12.8cm / 8.9 * 5.0inItem Weight: 30g / 1.1ozPackage Size: 26.3 * 13.9cm / 10.4 * 5.5inPackage Weight: 32g / 1.1ozPacking List:1 * Ruler a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a