United Scientific™ Trundle wheel
Manufacturer: United Scientific Supplies
This trundle wheel easily rolls along the ground to measure linear distance. A metered counter measures up to 99,999 meters, and the rubber wheel edge provides a steady grip when rolling over different surfaces. Telescoping handle can extend from 43 cm to 76 cm to provide comfortable operation for all users. The builtin folding stand allows upright storage. Includes a convenient carrying case.