For this exercise, you need the EZ-bar and Scott bench. Sit on the bench, resting your elbows on top block. Hold a barbell at the inner bend. The palms should face forward. The chest is pressed to the top block, elbows are locked. Hold the barbell in shoulder width grip. This is your starting position.
Inhaling, slowly lower the barbell by extending your arms until you feel the biceps stretching.
Exhaling, use the biceps to curl the weight up moving the barbell at shoulder level. Make a brief pause as you squeeze your muscles.