Curl, Zottman, and the preacher Position yourself on the preacher's bench, a dumbbell in each hand at your shoulders, palms facing away from you. Slowly lower the weights until your arms are completely extended, then twist your hands so your palms face you and curl the dumbbells back up to your shoulders. That's one rep. Preacher's benches can be found in many churches and other places where people pray. They're usually made of wood and have four straight legs with a seat attached to one end. You sit on the seat with your back supported by the back of the bench, under which lies a metal rod for lifting weights. The name "preacher's bench" comes from the fact that ancient preachers would lift their voices to be heard over their congregations as they preached from these objects. People use preacher curls when trying to increase the size of their biceps. It is difficult to do because you are working against gravity but it is possible through hard work. You can add weight to your preacher curls or try different variations. You can also use an EZ-curl bar if you don't own any dumbbells yet. Preacher curls are recommended as one of the best exercises for building muscle mass in the arm because they target the bicep muscle group very heavily.