Build a working Gumball Machine Marble Coaster! This elaborate system of gears, rods and ramps has the nostalgic look of gumball machine with the thrill of a working marble coaster. The fun begins by filling the holding globe with colorful gumball marbles. Turn the handle to launch gumballs through the spiraling chute and down the twin ramps before collecting at the base.• Develops fine motor skills, creativity, perseverance and dexterity• Includes 6 wood sheets with 156 precut pieces, 1 handle, 1 dome cover, 18 rubber washers, 3 screws, 1 hex nut, 1 screwdriver, 2 springs, 13 steel shafts, wax sandpaper, illustrated instructions, and 21 gumball marbles• Assembled size: 12.75 x 6.5 x 6• Average building enthusiasts can complete the puzzle in about 4 hoursAge Recommendation: Ages 12 and up