OUSIKAProduct Features:The wheels are made of new ABS engineering plastics, and are covered with super wear-resistant rubber skin, which is durable and strong.Large distance measuring wheel with foldable handlePerfect for surveyors, builders, road workers, farmers etc.One person operation-automatically records measurements as you walk, simply press the "Reset" button and start walkingCounter adds when moving forward and subtracts when reversingSwinging arrow allows distances between a precise start and end point to be measuredStrong and durable steel tubeSuper clear and easy to read displayFoldable for easy storage when not in useSpecifications:Product Name: Mechanical big wheelProduct specifications: 99999.9mFolding length: 53cmExpanded length: 97cmWheel diameter: 31.8cmWheel width: 22mmNet weight: 1kgPackage includes:1*Distance Measuring Wheel