Using this head set is super easy. Just gently remove the existing head of your SH Figuarts Gotenks figure and replace it with one of the 3 optional heads from the set. You can switch between them whenever you want to change the look of your figure. When handling the heads, be careful not to use too much force as they are delicate. To keep them in good condition, store them in a cool and dry place away from direct sunlight. Avoid touching the painted parts with dirty hands to prevent smudging. That's all you need to know to enjoy this awesome head set!