Difficulty : 2

yardage : 150cm width :
1m for 2 years,
1m05 for 4 years,
1m10 for 6 years,
1m15 for 8 years,
1m20 for 10 years,
1m30 for 12 years,
1m40 for 14 years,
1m50 for 16 years.