This Kids Wooden Puzzle is an elaborate and wonderful DYI Marble Run, Marble Night City. This is a four star level puzzle with 294 pieces, and loads of interesting details. The kit includes everything you need to assemble. It includes instructions ,pre-cut wood sheets, tools, steel balls, wax block, and sandpaper. This puzzle is an excellent exercise in hand-eye coordination. This is a beautiful puzzle when it is finished with its two-toned wood and acrylic sheets make for a strong contrast of pure black and original wood. Buy one today for the puzzle lover in your home! Finished puzzle size 12.80" x 8.42" x 9.0"