Nothing effectively isolates the bicep quite like a preacher curl exercise. Preacher curls mainly work the lower part of the bicep but they also work the forearm. This preacher curl attachment is a great piece for any weight room sporting Deltech Fitness equipment. The pad has eleven adjustable heights to accommodate almost any lifter, tall or small. This preacher curl attachment is designed to fit the DF102 flat/incline bench, DF9500 flat/incline/decline bench, and the DF2000 standard weight bench.