Measure and explore volume and make comparisons of solids and liquids using this sturdy bucket balance with lids. Calibrated, clear buckets are labeled with measurements and can hold solids or up to 400ml of liquid. Easy-pour spout on removable buckets makes measuring liquids mess-free. Lids can be used as platforms, and the built-in drawer is perfect for storing weights. Balance measures 16-1/2 x 6-1/2 x 6". Grades K and up.