Our Little Builder 100 piece Block Set includes: 24 Half Units, 6 Units, 12 Half Pillars, 8 Pillars, 6 Columns, 2 Small Triangles, 16 Half Unit Flats, 16 Unit Flats, 2 Double Flats and 8 Notched Half Units. Made from Smooth Sanded Hard Maple from Minnesota and Wisconsin. Very High Quality Wooden Blocks. All edges are smooth sanded, surfaced, rounded, and soft. Recommended Age: 1+ years