Using this product is easy. First, take out the parts you want to use from the set. Then, carefully attach the hair pieces, facial expressions, hand parts, or tails to your SH Figuarts Son Goku GT figure. When handling the parts, be gentle to avoid any damage. After use, store the parts in a cool and dry place to keep them in good condition. Also, keep them away from sharp objects. If you have any other SH Figuarts figures, you can try these parts on them too, but make sure they fit properly. Have fun customizing your figure!