Grimm's &frac14; Quarter Circles Wooden Mini Magnetic Creative Play Design Puzzle in Travel Box Unique magnetic puzzle for creative design is made of 64 wooden pieces backed with magnet strips Each wood piece is one-fourth of a circle. Included are circles in 16 different vibrant colors! Grimm's Creative Magnetic Puzzles (available in a wide assortment of designs) encourages exploration and inspires your own unique creative expression Packaged in an attractive black magnetic 8-inch square storage box that doubles as a play surface. Alternatively, opt for a larger magnetic surface such as Grimm's Folding Magnetic Travel board or large black magnetic board) Travels well: a perfect solitary activity at home, on the road, during a rainy day or on a flight! For Age 4 years+. Expand your magnetic play with any of the other creative magnetic puzzles from Grimm's!