Mudpuppy's Constructible Building Sets encourage learning while playing with 25 interlocking slotted card pieces in 5 basic shapes--all in a well-constructed, sturdy box. Each piece is labeled with its color name or is decorated based on the theme of the set. Constructibles improve hand-eye coordination and develope fine motor skills and reinforce principles of balance and spatial relationships. They are suggested for ages 4 and up. $13
