With biceps, much of the work should include a very forceful squeeze at the end of each rep. The hard flex will drive blood into the muscle.
The incline concentration curl is great for hard contractions. Just push the dumbbells together and squeeze the heck out of them.
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Adding a band to this machine provides continuous tension and an intense contraction at the top of every rep.
Hard Core Training. Literally.
Harden your core and level up your big lifts without doing any conventional (boring) ab exercises.
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Get a pipe and make this yourself. Unlike a standard wrist roller, the rack version doesn't overtax your shoulders, just your grip and forearms.
Tip: Corrective Complex, Calves
Sequence these corrective drills in this order and you'll get better results from each. Try it before your next lower body workout.