ETA hand2mind Plastic Differentiated Base Ten Blocks, Math Manipulative Kit (Set of 121) Demonstrate place value and base ten concepts Master the fundamentals of place value and regrouping with this base ten set in various colors: green cube, yellow units, blue rods, and orange flats Durable plastic can be washed and used for multiple years Set includes 100 Units, 10 Rods, 10 Flats, 1 Cube, Place Value Mat, and storage container Grades 3-6