This jumbo set includes 29 different shapes in 8 boxes - enough to accommodate large groups or several classrooms. Unit Blocks are based on a unit measurement of 1.25" giving uniformity of measure for easy building. Smooth, hand-sanded solid hardwood with beveled edges and rounded corners for safety.
Basic Unit Block: 5.25"w x 2.75"d x 1.25"h. Ages 2+ with Adult Supervision Recommended. Color may vary. Image is representative only, not exact.