So you have a hard time completing pullups? The Lifeline Pullup Revolution system has you covered. It has an adjustable system that lets you perform more, better reps. It provides you with up to 100 lbs of power assistance.
The kit comes with 3 x 16″ resistance cables. It lets you do more reps without pushing your body over the limit. As you get stronger, you can decrease assistance level. Like what you see? It costs under $40.