Feature: 1. Lightweight measuring wheel with easy‑to‑use digital screen that can clearly display your measurement results. 2. The surface of the measuring wheel is made of wear‑resistant thickened rubber, which is resistant to deformation and non‑slip. 3. With telescopic guide rod, the measuring wheel is easy to carry and store. 4. Ergonomic designed, comfortable to hold, good quality and long service life. 5. Wide application, this wheel suitable for road, sidewalk or land measurement. Specification: Item Type: Distance Measuring WheelMaterial: ABS Unit of Measurement: Inch system, metric system Backlight: Green Measuring Range: 10000m / 9999.9ft Accuracy: +/- 0.5% Display Resolution: 0.1m Wheel Diameter: Approx. 318mm / 12.5inch Shrinkage Length: Approx. 0.7m / 2.3ft Extended Length: Approx. 1meter / 3.3ft One Round of Measurement Range: Approx. 1meter / 3.3ft Power Supply: 1.5V 2 x AAA batteries (not included) Working Temperature: 14℉-113℉ (10℃-45℃)Size: Approx. 32cm / 12.6in71cm / 28in 100cm / 39.4in. Package List: 1 x Distance Measuring Wheel1 x Portable Bag1 x User Manual