5 Sets Of Black And White Bead Stairs This series of prisms demonstrates

This series of prisms demonstrates to the child the change in width (breadth)

Put 13 different shapes in the correct 13 holes and put them out to exercise the child's observation and practical ability to promote hand-eye coordination so they can learn to sorting and matching

The cylinders are graded from very soft to loud and each cylinder has either a red or a blue top and is contained in a wooden box with a matching red or blue lid

This exercise helps to develop the child's eye-hand coordination

the medium color is of medium weight

5 Sets Of Black And White Bead Stairs This series of prisms demonstrates5 sets of black and white stairs used in addition and subtraction exercises. The beads are plastic and the bar is made from copper. Recommended Ages: 4 years and up