Skill-WOD

For quality (use max 15 min)
50-40-30-20-10 double unders
Between sets
16-14-12-10-8 toes to bar

Levels:

Expert: all sets unbroken, rest about 20-30 sec between sets. Under 10 min without dying.

Advanced: split reps as needed and rest as needed. Under 15 min without dying.

Beginner: scale the movement (knee raises) and reps as needed. Single unders x 2 or 90 sec of double unders practise every round. Use 15 min