- There are ten brown, wooden prisms all the same length but varying height and width from 1 centimeter to 10 centimeters (or one decimeter squared).
- This is designed to teach the concepts of “thick” and “thin”.
- Each stair is 20 cm in length and varies in thickness from 1 to 10 cm
- When put together from thickest to thinnest, they make an even staircase.
- As an extension, the broad stairs are often used with the Pink Tower.