This pattern is easy to make and fun to play with. It's a great craft to make with children. Most school age children can make this item. Help from an adult for cutting and threading needles will be needed for most children under 10. You'll have a whole flock of penguins before you know it! The little penguin on the right who's sitting on the stairs was made by a 7-year old. BASIC SKILLS NECESSARY cutting hand sewing SIZING / FINISHED MEASUREMENTS pocket size! but if you enlarge or reduce the pattern you can make any size!