Excellent for teaching weighing concepts, the set of square shapes is molded from durable plastic with recesses so the masses are stackable. They are also color coded to correspond with the value of each mass. The weight is imprinted into the top of each piece. 35 pieces: 20-1gm masses, 10-10gm masses, 5-20gm masses.
Bullet Point 1
Color coded to correspond with the weight
Bullet Point 2
Molded from durable plastic with recesses for easy stacking
Bullet Point 3
Gram measurements are imprinted on the top of each weight