Cascade bicep curls

Here's an amazing bicep workout introduced to me by one of the other trainer's I work with. First pick a weight that you could lift between 5-8 times. Do 5 reps of those. Put those weights back on the rack grab a weight 5 lbs lower. Do 10 reps of those. Put those weight back and grab weights 10 lbs lower than your first weight. Do 15 reps of those. Pick up weights 5 lbs lower than your previous weights. Do 20reps. That's one set. Enjoy the results :)