Hey guys, just wanted to post a bit of information about the Scientific Wildlife Products Camera Arm. We believe that this camera arm offers the most adjustability and stability of any camera arm on the market for this price. The camera arms retail for $224.99 and extra bases for only $99.99. At these prices it is affordable enough to leave extra bases in your favorite spots all year long. These arms have been rigorously tested and have performed flawlessly. The custom desgined coupler attaching the base to the arm allows for adequate adjustment for any tree and each part is custom machined on a CNC Mill. For more information please visit our website at www.scientificwildlife.com.