To use the Connetix 24-piece Rainbow Mini Pack, simply take out the magnetic tiles and start connecting them. You can create 2D shapes on a flat surface or build 3D structures by stacking the tiles. Try making different things like rockets, houses, or flowers. Since it's for kids aged 3 and above, make sure to supervise them as the set contains magnets and small parts. Avoid swallowing the magnets or small pieces. To maintain the pack, keep the tiles clean by wiping them with a soft, dry cloth. Store the tiles in a box or container to prevent loss and keep them organized for future use.