This is a JOBY smartphone tripod and selfie stick that was in the Apple Store! It can also be used with a GoPro housing, so you can use it not only for iPhones and smartphones, but also as a tripod or selfie stick for your GoPro! It has three-stage extension, and please refer to the photos for the length. You can set your smartphone or iPhone vertically or horizontally. If you have any questions, please feel free to ask in the comments! Thank you very much!