Lying Dumbbell Curls

Take a dumbbell in each hand and lie backwards on a bench, similar to a classic chest press. Let your arms hang down at your sides, with the dumbbells possibly touching the floor. Now start to lift the dumbbells upwards until your forearms are perpendicular to the ceiling. Slowly lower the dumbbells until they almost touch the floor again. Keep your ellbows in place to minimize cheating.