All the pieces fit together perfectly to form a strong and durable spherical puzzle. A plastic stand is included so you can display your completed 3D puzzle in your room for all to admire! Our 72-piece 3D puzzle balls are made to premium quality and measure 13cm in diameter when finished. This puzzle uses unique plastic pieces that are washed together to create a durable and strong model. No glue needed! Assemble by eye or use the numbers on the back. 77 parts in the set, instructions. Folded dimensions: 13.2 x 32.4 cm