Using these Chomp n' Go Dino Skulls is super easy. Just grab the dino skull and pull it back on a flat surface. Then let it go, and it will start chomping along. When you're done playing, keep them in a dry place away from sharp objects to avoid any damage. If they get dirty, you can gently wipe them with a damp cloth. These toys are great for kids, but make sure small children use them under adult supervision to prevent any choking hazards.