The biceps curl is the definitive exercise for biceps development. 

a popular misconception is to go heavy for this exercise, in fact the opposite is true.

The biceps are made up of two relatively small muscles and when you go heavy with a biceps curl rocking or bouncing of the weight is inevetible, this engages other muscle groups such as the lower back and shoulders. and does little to actually target the biceps

To properly train and strengthen the biceps you must isolate them and use strict technique and this is precisely what the E- Flex forearm bar is designed to do.

The E-Flex Forearm Bar uses steadfast principles of leverage for more effective biceps training. Leverage equipment has the distinct advantage of requiring less weight while positioning the targeted muscles in the “right zone” for optimal muscle involvement.