It pulls in both directions. But for years there was never the right tool to adjust your Panel button springs. Push on them with a screwdriver and it would kink and weaken the spring, grip with a pair of pliers and again you would crimp and weaken the spring. Worse you would break the spring and have to drill it out and put in another. Lockfast's Panel Spring Adjuster is the right tool, the only tool for the job. It pulls the spring evenly like a panel button so you don't get kinks, or worse, breaks. The panel spring adjuster is quick and easy to use, lightweight, and durable. This is a must have tool for every racer.