1. ACCURATE MEASUREMENT: The rolling measuring wheel has a measurement range of 0-9999.9m, making it easy to measure straight lines and curves for both private and industrial use. Adopt an accurate gear structure design with an accuracy of 0.5%. Increasing the number forward and decreasing backward helps prevent errors. Using a binary number system makes data easier to read 2. LIGHTWEIGHT AND COMFORTABLE: This construction measuring wheel is made of quality ABS plastic, which is lightweight, can be used for a long time and is easy to carry. Adopts a soft rubber handle to ensure maximum comfort during long term use and reduce hand fatigue 3. EXTENDABLE ROD: The rolling measuring wheel adopts a lightweight and extendable aluminum rod, which can be easily adjusted to fit personalized heights and can be folded down for convenient storage and transportation. Can be extended and retracted downward twice up to 19.3in and can be placed in a backpack for convenient carrying and transportation. When unfolded, can arrive a length of 41.7in and is suitable for many indoor and outdoor projects. The elastic rod enables you to use on a higher appearance 4. ACCURATE STABILIZING WHEEL: The dual rolling measuring wheel is equipped with ​ rubber molded wheels, which can provide excellent stability and accuracy on glossy and hard surfaces, making the measurement effortless 5. WIDE APPLICATION: The accurate distance measurement tool is suitable for various applications, including construction, landscaping and projects, making it an important tool for both professionals and amateurs Spec: Item Type: Rolling Measuring Wheel Extendable Size: Approx. 49-106cm / 19.3-41.7in Measurement Range: 0-9999.9m Wheel Diameter: Approx. 10.2cm / 4in Material: ABS, aluminum alloy, rubber grip How to Use: Take out the product, install and use. packing list: 1 x Measuring Wheel ACCURATE MEASUREMENT: The rolling measuring wheel has a measurement range of 0-9999.9m, making it easy to measure straight lines and curves for both private and industrial use. Adopt an accurate gear structure design with an accuracy of 0.5%. Increasing the number forward and decreasing backward helps prevent errors. Using a binary number system makes data easier to read EXTENDABLE ROD: The rolling measuring wheel adopts a lightweight and extendable aluminum rod, which can be easily adjusted to fit personalized heights and can be folded down for convenient storage and transportation. Can be extended and retracted downward twice up to 19.3in and can be placed in a backpack for convenient carrying and transportation. When unfolded, can arrive a length of 41.7in and is suitable for many indoor and outdoor projects. The elastic rod enables you to use on a higher LIGHTWEIGHT AND COMFORTABLE: This construction measuring wheel is made of quality ABS plastic, which is lightweight, can be used for a long time and is easy to carry. Adopts a soft rubber handle to ensure maximum comfort during long term use and reduce hand fatigue ACCURATE STABILIZING WHEEL: The dual rolling measuring wheel is equipped with rubber molded wheels, which can provide excellent stability and accuracy on glossy and hard surfaces, making the measurement effortless WIDE APPLICATION: The accurate distance measurement tool is suitable for various applications, including construction, landscaping and projects, making it an important tool for both professionals and amateurs Item Weight 1.99 pounds Manufacturer Oreilet Package Dimensions 19.69 x 6.69 x 5.91 inches