I am a teacher and ordered this product for my classroom.  While I wouldn't expect this product to stand up to heavy abuse, it broke almost immediately.  One of the blue connector plastic pieces fell off after one of my students simply handled the sphere.  I spent ten minutes trying to get the two blue pieces 'clicked' back together, but they will not stay on the sphere.  Now I am simply waiting for the rest of it to fall apart.  Good idea in theory, but not if it cannot be used without breaking.