PSERJ-66AThe PSERJ 66A is made with the same high quality standards as the Pro Series lifts. As with all of Pro Series products safety is highest priority. We use the best materials available and put countless hours into making all Pro Series Lifts and accessories the best they can be. High quality parts, that's what makes the PSERJ 66A more reliable, with greater longevity, while requiring less service. PSERJ 66A Description Features Mechanical Safety Lock