Quantity of Pieces: 83 Weight: 400g Large Box: length- 18cm, height- 19cm, width- 5cm 3D Crystal Puzzle is made from high quality plastic. These puzzle pieces interlocks with each other to form a three dimensional model. Assembling of these puzzle pieces are fun, fulfilling and yet challenging. Helps to develop spatial skills, perseverance and logical thinking. Suitable for 10 years and up Play N Learn is the exclusive distributor of 3D Crystal Puzzles in Singapore, Malaysia and Brunei.