Pull Up bars are one of the most basic fitness accessories and have been around for ages. Two types are available. The doorway pull up bar is a cheap item that makes a great gift and works great for kids. The free standing chin up bar is a bigger piece of equipment that requires an adequate amount of space in a garage, basement or home gym. Both types give you the necessary means to build a strong back and biceps with a dedication to pull ups. If you weigh over 150 lbs, the free standing pull up bar is going to be a better option than the doorway pull up bar.