The Acropeople come in 3 sizes – small, medium and large.  They come in 4 colors – green, blue, red, and yellow. Their hands and feet are designed to snap together so children can create long links, but they are also designed to move backward and forward (like a hinge) so children can also build shapes out of them.

I have written about enough manipulatives over the past year that provide the same opportunities for sorting, counting, patterning, measuring, etc., that I don’t need to explain all of those qualities here – but the added attribute of flexibility is a real benefit to this set.  They are playful as well.