This is one of my favorite biceps weight training exercises that I like to alternate into my workout every second week, as a variation exercise. You can do the curl simultaneously or one side at a time or alternate between right and left biceps. I am going to do the exercise simultaneously, working both biceps at the same time, it’s a little bit more difficult than the other two ways and it forces you to do the exercise evenly on each side. Doing it one at a time may result in one bicep being worked harder over the other. I am using a 90 degree angle bench but you can also do this exercise on an incline bench.