To use this mini block set, simply take out the 51 small colored blocks from the plastic container. Then, start fitting the blocks together following your imagination or by creating a 3D stand - up dolphin. For kids aged 3 and up, it's a great way to develop their creativity and hand - eye coordination. When you're done playing, put all the blocks back into the plastic container to keep them organized. Make sure to keep the blocks away from small children under 3 to avoid choking hazards. To maintain the blocks, you can gently wipe them with a damp cloth if they get dirty. Enjoy collecting all 24 animals in the series!