I recommend not wasting your time purchasing this product. The same day I mounted it to the door the L shape piece started banging against the door frame every time I used it. Not only was that annoying, but every time I tried doing a pull-up with out the hooks, the rubber would spin making me feel like I was going to lose my grip and fall. If you purchase this product, you are very limited to how far you can extend your arms which causes faster muscle fatigue. If you do not desire to be miserable with this product after a few days look into the Iron Gym Extreme it has more options for positioning and extending your arms, ultimately you wont be disappointed and its half the price.