Plastic Stacking Masses

Student Standard Mass Set

Set of 27 weights includes 17 hexagram weights (10 red 5 g, five yellow 10 g, two green 20 g) and 10 Weight Too® two-color 1 g weights (red and yellow). Grades 1-8. More.

Plastic Stacking Masses - Set of 40

These square masses work on any balance. Color-coded pieces make measurement easy (1 g = yellow; 5 g = orange; 10 g = purple; 20 g = pink). 220-gram set includes twenty 1 g, ten 5 g, five 10 g, and... More.