Ab Workout - Week 2

• Seated rear lateral raises: 7.5 kg 15/10/8
• Crunches: 16 kg 13/10/8 supersetted with...
• Hanging knee raises: 6 kg 10/8/8
• Dumbbell side bends: 21 kg 10/8 *

I'm going to find another oblique exercise instead of these as I just don't feel them working at all.