The PROGRADE 59151 F-Bar Clamp is a locking clamp that offers you greater control and precision when handling your projects. The clamp has a max opening of 2-1/2″ and an overall length of 30″. It has a steel construction, which makes it sturdy and durable. You can use this 30″ long locking clamp to secure panels, tubing, metal rods and other parts together. Whether you are working on home improvement or industrial projects, the PROGRADE F-Bar Clamp will give you great results.