Put your Cuisenaire Rod lessons right on your whiteboard. Jumbo versions make it easy to model math concepts. Targets number sense, operations, measurement, early algebra - anything you already model with the original award - winning Cuisenaire Rods. Labels easily with a wet - or dry - erase marker. Clings to whiteboards or any magnetic surfaces. Includes 64 different shapes and colors. Largest piece measures 5"L x 11"H.