STA-RAT pinpuller (Semi Tandem Axle- Release Assist Tool) greatly reduces the difficulties of the dreaded tandem slide. It allows the driver to single handedly release the tandem locking pin, while watching through the rear view mirror. It helps drivers set the tandem slide pins in the exact location at one time and every time. STA-RAT is safe and simple to use, and reduces the risk of back pain and shoulder injuries to drivers. Please watch the video on our website www.sta-rat.com, showing how to use the tool