Teachables Eco-Plastic Base Ten Class Set - With StorageThis comprehensive Teachables Eco Plastic Base Ten Class Set includes 185 pieces designed to make teaching and learning place value easy, engaging, and environmentally conscious. The set contains 100 yellow units, 50 green rods, 30 blue hundred flats, and 4 red thousand cubes the perfect combination for demonstrating how multi digit numbers are built. Whether you're introducing the concept of place value or reinforcing number sense, this set provides