Includes: 2 Master Jaws, 2 soft jaws. Suggested to purchase Alignment tool for additional accuracy and best fitment for any dual jaw fixtures or products. The best and only vertical dovetail quick release soft jaw system. Made from 6061 aluminum then hard anodized, these are only as versatile as the machinist using them.  We had designed initially for ourselves in a job shop setting for quicker jaw changes in-between setups, this product has proven itself and has seen a wide range of products and setups. With the ability to move the jaw up and lock in has proven to be the most versatile and effective way to fixture parts in any operation.