Ninja Birthday Party design. This birthday ninja 6 design is a perfect birthday gift for six year old boys & girls that like ninjas, karate & other martial arts. Great birthday keepsake gift to always remember your kids ninja theme birthday party. Features Ninjutsu Japanese symbol & cartoon comic style ninja karate kick graphic that the 6 year old birthday ninja boy or girl will LOVE! Click the "Birthday Ninja - Kids Party Gifts & Apparel" brand link for ages 2-9 & Dad & Mom of the birthday ninja! Lightweight, Classic fit, Double-needle sleeve and bottom hem