This is the ZHIYUN Smooth-Q, a 3-axis gimbal for smartphones. By attaching your smartphone to this, you can easily shoot smooth, cinematic footage. I think it's an essential item for anyone who wants to start taking videos. If needed, I'll also include a special mount plate (pictured) for attaching a GoPro, but one screw is missing. You'll need to buy one at a 100-yen shop or use a rubber band as a substitute. I bought it new and used it a couple of times, but I'm selling it cheap because I'm decluttering due to a move. Feel free to ask any questions in the comments!