Do you want to see my progress?Outrageous. This has the potential for undoing years of therapeutic work in our household. My daughter's development will be set back completely if she sees it. From the age of 2 she dragged back packets of stones from every possible location...only extreme bribery and distraction technique has enabled her to leave this behind, and at 18 is now free of stone-magnetism. A decade's work undone in an instant.