I started modifying my CONCENTRATION Arm curls which targets mostly biceps 💪🏽
And this Modification from Super Set Con curls 4 sets starting with 8 reps all the way to 11 with a 30 lb kettle weight to a Master Blaster Superset to alternating curls starting from 1 -11 no rest actually except the time it takes to do the other Arm It's Super intense but in 30 days my biceps went from 13 inches to just over 15 inches it is A game changer technique for Arm muscle building!



















































































