The tape measure is extendable, has height/height gauge and retractable tape measure, which does not take up much space and is easy to use. APPLICATION: This tape measure is mainly used for measuring height at home, so that your family can measure body at home. The ruler is 2 meters long enough to measure the height and easily measure the height of adults and children. ACCURATE READING: The number on the tape is clearly marked and the data can be read easily, accurately, reliably and permanently. EASY TO USE: The tape is equipped with double-sided tape and screws, which can be hung on the wall to measure the height. Specification: Condition: 100% Brand New Item Type: Metal Stature Meter Material: ABS Scope of application: 2M System: Metric System Tape Width: Approx. 2~2.5cm / 0.8~1inch Strap Length: Approx. 2 m / 6.6 ft Optional Color: Black, White Package list: 1 x Metal Growth Knife Note: 1. Please allow slight error due to manual measurement. Thanks for your understanding. 2. The monitors are not calibrated the same. The item color displayed in the photos may be showing slightly different from the real object. Please take the real one as the standard.