High-quality Material Selection: Our distance measuring wheels are made of thermoplastic TPR rubber, which is wear-resistant, aging-resistant and deformation-resistant. The column is made of stainless steel. It is beautiful, light, corrosion-resistant and strong. The handle is made of ABS plastic, is thick and High-precision Measurement: The large-scale measuring wheel technology is professional and can be counted precisely: the measuring wheel diameter is approx. 31 cm. Measuring range: 0-9999.9 m. Error: ≤ 0.5%. Overall length: approx.92.5 cm Perfect Design: The measuring wheel has excellent performance, coaxial design, safety feet and LED lights, can drive indefinitely and has a special foldable and retractable design for easy storage and transport Wide Range of Applications: Thick and non-slip measuring wheels are suitable for precise measurement of roads, sidewalks, outdoor areas, large areas or land, especially for surveyors, construction workers, farmers, etc is Simple: The measuring wheel is a mechanical button with a reset mechanism, the counter is driven by a mechanical gear, the increment counter increases and the decrement counter decreases. The large screen is displayed more clearly, simplifies and makes surfing easier