Rigamajig offers children and their caregivers opportunities to create their own simple machines, exhibiting pull/push and the power of ropes, pulleys and wheels to accomplish work. My experience watching the Simple Machine pieces in use is limited to watching trial and error and experimenting with how pieces can turn and add to the looks of a structure. I love the power Rigamajig gives children once they "unlock" the mystery of bolts and nuts, they discover team work, not only with their family, but also with other "engineers" dreaming, planning and working beside them. The excitement generated when their structure rolls across the floor, pulling yet another structure successfully with passengers is powerful to watch! I am excited to discover more empowerment as our young engineers explore the possibilities of the Simple Machines components. Thank you for the gifts of creativity, problem solving and teamwork.