"gel box"

Set of 54 Includes twenty 1 g (blue), twenty 5 g (red), ten 10 g (yellow), and four 20 g (green) weights. These colored and coded stacking masses help children see mass relationships at a glance. Each color represents a different thickness and mass. Includes plastic storage box.

Wonderful for elementary school learning.

Zinc plated hexagonal masses.

Accurate Results at an Affordable Cost

Accurate non-rolling hexagonal steel masses.

Enameled hooked weights with a plastic storage case.

Set of nine hooked weights. Range from 10 g to 1000 g. Made of cast iron.