Spend a rainy afternoon slotting 294 plywood and acrylic parts into a smoky, gear-driven tower—turn the crank, release 10 steel marbles and watch physics in motion, conversation-starting centerpiece for any home or office.
Spend a rainy afternoon slotting 294 plywood and acrylic parts into a smoky, gear-driven tower—turn the crank, release 10 steel marbles and watch physics in motion, conversation-starting centerpiece for any home or office.