Description These color-coded stacking masses help children see mass or weight relationships at a glance. Each weight is a different color and thickness, so they are easy to understand and manipulate for small hands. They are perfect for use with a wide variety of balances, including Item #5100-00. Set of 8 plastic weights includes: • Five (5) green 5 g weights • Two (2) yellow 10 g weights • One (1) red 20 g weight
