Grades PreK & up. This brightly colored and easy to use 5-in-1 measuring tool will be your new classroom favorite. Children can work together or individually to learn basic math concepts such as measuring distance, depth, height and width. Children will have hours of fun as the use the tool to measure anything outdoors! The easy to take a part tool includes two caliper jaws, one trundle wheel with bird footprint tread, one handle/base, one measuring stick (centimeters and inches shown), one colorful sticker sheet and a mesh storage bag.