A durable plastic balance this Elementary Balance is a great science tool for teaching young scientists the basic concepts of mass and mass measurement.

Balance has a plastic slider that zeros the balance. Fitted tray lids convert buckets to make platforms.
You may choose this scale with only plastic weights or with both plastic weights and metal weights. Metal weights include 2 each of 1g, 2g, 5g and 10g weights, and 1 each of 20g and 50g weights.

Balance measures approximately 16:L x 4:W x 3.5:H.