Earning your belts
Kyu Grades ( all the coloured belts before black)
First Dan
2nd Dan
Minimum age: 18 years / Minimum practice: 1 and a half years / 300 training days since 1st Dan
3rd Dan
Minimum age: 25 years / Minimum practice: 2 and a half years / 500 training days since 2nd Dan
4th Dan
Minimum age: 30 years / Minimum practice: 3 and a half years / 600 training days since 3rd Dan