Ninja Birthday Party design. This Birthday Ninja 5 tshirt makes a perfect gift for a 5 year old ninja birthday party gift. Features Japanese symbol for Ninjutsu with cartoon ninja karate kick the birthday boy or girl will LOVE! This ninja birthday tshirt for boys and girls is a perfect fit for a 5 year old that likes ninjas, karate, taekwondo, judo or other martial arts. Click the Brand link at the top to see this design for ages 2-7! Lightweight, Classic fit, Double-needle sleeve and bottom hem