The 1" Twist Lock Plunger from B/A Products Co. is engineered to be a much easier and more reliable choice to use instead of those old style locking pins. The plunger is designed to allow for one hand operation to open the assembly. Then it can be easily put into the automatic locking position for a secure hold. Once the holes in your bar line up, the pin will fully engage. Built for durability, this high-quality twist lock plunger can be used on sling arms, stabilizer legs, wheel lift forks, and more.