Bulk Metric Weights - Set of 810
Product Number: TB21919
In Stock (Ships within 1-2 business days)
These color-coded stacking masses help children see mass relationships at a glance. Each color represents a different thickness and mass. Weights include 300 blue 1 g, 300 red 5 g, 150 yellow 10 g, and 60 green 20 g. Comes in a plastic storage container. Grades 1-8.