Add these to your next AB workout! 3-4 sets of 12-15 Reps, or 3-4 rounds of 30 sec of work! Resting for 30-60 sec in between each set/round! Be mindful of your form, keeping your, back flat, neck/chin relaxed/neutral. Bring legs off of floor about 6 inches. Focus on engaging/squeezing your ABS while moving legs in circular motion.