Belts.. As students pass through the ranks taking grading examinations they are awarded with different coloured belts. The colour order and which colours are used varies from school to school, as does the relationship between belt colour and rank... Japanese Judo was the first martial art to introduce the coloured belt ranking system as a visible indication of the students’ progress. The coloured belt ranking system soon was adapted for Karate and many other martial arts systems.. these belts are of excellent quality and long lasting..comes in size 250cm