6 - 1/2 units, 2 - units, 6 - 1/2 pillars, 4 - pillars, 2 - double pillars, 4 - columns, 1 - roman arch, 1 - 1/2 circle and 2 - small triangles. These 28 hard maple unit blocks provide a great introduction to block play, all based on fractions or multiples of the traditional unit block dimension of 1-3/8 x 2-3/4 x 5-1/2. Made from Smooth Sanded Hard Maple from Minnesota and Wisconsin. Very High Quality Wooden Blocks. All edges are smooth sanded, surfaced, rounded, and soft. Suggested age: 1+