BALANCE SCALE FOR KIDS LEARNING: This sturdy, plastic self-correcting balance shows operations, equalities, and inequalities with a double-sided crossbeam imprinted with numbers on one side and a blank track on the other. HOMESCHOOL KINDERGARTEN: Balance has two convenient, non-spill storage compartments that store the included 20 ten gram hanging weights when not in use BALANCE SCALE WITH WEIGHTS: Also included are pre-printed and blank value strips which can be slid into the blank track to change the activity. The pre-printed strips can be used to teach time, money, measurement, and arithmetic concepts MATH BALANCE SCALE FOR KIDS: Use the write-on/wipe-off blank strips to create a variety of additional activities such as comparing positive and negative numbers, fractions and decimals, Roman and Arabic numerals, and much more MONTESSORI MATH MATERIALS: Balance has calibration clips to ensure accuracy. When assembled the balance measures 10-1/2"H x 31"L x 4"D.