Foldable and Easy to CarryThe measuring wheel can be folded into three parts for easy transportation and storage in a backpack included. It can extended up to 40in when you use it, and when folded, it can extended up to 15in. Easy to carry and save your space. 9999 ft Maximum CapacityMeasuring in feet and inches for US, the rolling measurement wheel measures up to 9999 ft, U.S measuring units. The measuring accuracy of distance measuring wheel is 0.5 Accurate MeasurementThe measuring wheel in feet adopts gear counting and no need to install batteries.The forward count increases and the backward count decreases. If the destination is exceeded, you can go backward to avoid wasting your time. Durable MaterialDistance measuring wheel tires are made of ABS thickened rubber, coated with 6mm wearresistant rubber, thickened control shaft, and folding lock is made of composite material for long service life. Wide ApplicationThe measuring wheel for construction is suitable for various of people greening workers, construction workers, real estate appraisers, landscaping workers and homeowners. Measuring wheel is suitable for all environments grass, concrete, gravel, soil, etc.