Using the Plus-Plus Pteranodon tube is easy. Just let your kids pick up the pieces and start arranging them in 2D on a flat surface or build 3D structures right in front of them. Encourage them to think outside the box and come up with their own unique creations. As for precautions, keep the small pieces away from very young children who might swallow them. When it comes to maintenance, you can simply keep the pieces in the tube after play to avoid losing them. If they get dirty, you can gently wash them with mild soap and water and let them dry thoroughly before putting them back in the tube.