Using these Heroes of Goo Jit Zu Sonic Minis is super easy. Just grab a figure and start stretching it. You can stretch it up to 4 times its size! To have some fun battles, wrap the figures around each other. They'll quickly go back to their original shape after you let go. When you're done playing, keep them in a safe place away from sharp objects to avoid any tears. If they get dirty, you can gently wash them with mild soap and water, then let them dry. Remember, these toys are for kids aged 4 and up, so make sure younger kids don't play with them to prevent any choking hazards.