Design your own sea stacks with Mudpuppy's Under the Sea Constructibles Building Set. Jelly fish, octopus, sea turtle, seaweed, coral, crab, sea urchin, seahorse, sea star, sea snail--and of course, lots of colorful fish--all on this set of 25 interlocking slotted card pieces in 5 basic shapes. All the pieces go easily back into a well-constructed, sturdy box.

In addition to being fun and a creative outlet, Constructibles Building Sets improve hand-eye coordination, develop fine motor skills, and reinforce principles of balance and spatial relationships.