2, 4, 6, 8, 10 and 12 years

Difficulty : 1

yardage : 150cm width :
 1m10 for 2 years,
1m20 for 4 years,
1m40 for 6 years,
1m50 for 8 years,
1m60 for 10 years,
1m70 for 12 years.