The Milwaukee 12 In. Measuring Wheel was designed for extreme durability, increased ergonomics, and productivity. Constructed of reinforced aluminum frame and reinforced folding joints to withstand the toughest jobsite conditions. Durable locking pivot points help quickly fold the unit for transportation and storage. To prevent build-up of dirt and grime that could potentially jam the wheel, the 12 In. measuring wheel has also been designed with a Debris-Cleaning Wheel Flap that easily clears away contamination while rolling. In addition, the 12 In. measuring wheel also includes a reinforced kick stand. The pistol grip handle is designed to provide similar ergonomics to that of a power tool handle. These handles feature a top brake function that can be used to 'lock' the wheel and the reading, increasing accuracy. The 12 In. Measuring Wheel is also designed with a top handle clearing function for easier use, allowing the user to reset for each measurement without bending over.