A couple (Barbara and Don Sickerson) designing a new toy for children in Oakland, CA. Shots of them sketching and trying out a sample. Called a ‘tumble top’. Tubs are produced on an industrial spinning machine. Children in nursery school try out the toy. Excellent shots of children playing in them on the floor. Inside of the new toy factory. Examining the new tub press. Children playing in tumble tubs on a playground and on snow. Views of the tumble tubs on an assembly line. Workers using machinery (some look like giant film reels) in factory. Workers leaving the factory.