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Mass Set, HexagonThese plastic hexagon-shaped masses help children visualize mass and reinforce how addition works. Each color is a different height and mass, which is stamped on the top. Smaller masses stack to equal both the mass and height of larger masses. The set includes twenty 1g, twenty 5g, ten 10g, and four 20g masses, or 300g total. Comes in a sturdy plastic case. Ideal for use with the Primer or School balances.
Overall Rating:  Write an online review and share your thoughts with other customers Sort Reviews: Newest | Oldest | Highest Rating | Lowest Rating - Monday, August 31, 2009Great for all ages Reviewed By: kristip These are easy to use even for kindergarteners, but also useful for my sixth grader. They have been convenient for measuring object masses with our balance scale - also in math exercises to find equivalent sums. |
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WARNING:
CHOKING HAZARD - Small parts. Not for children under 3 yrs.
