Purchased 6-7 years ago, used only on Children's Day during sunny hours for 2 years. After moving, I couldn't use it anymore and carefully stored it in the closet. You can find out if it can be installed by searching the internet. The arrow wheel's rotating ball is slightly warped and has scratches due to assembly and use. It's not rigid, so you can adjust it by hand, but it's not as pristine as new. There is some staining on the carp streamers. See the 4th photo. There is also staining on the handrail side of the main body that attaches to the handrail. See the 6th photo. All parts are included, but the part in the 8th photo wasn't listed in the instructions and wasn't used, but I've included it anyway. The pole is 1.9 meters long and consists of 4 sections. The outer box is damaged. The carp streamers don't have any stains and I think they can still be used comfortably, but they are used items, so please understand. Please refrain from purchasing if you are overly concerned about minor details. Please purchase after you are satisfied. I will wrap the outer box for shipping. If there are no purchases at this price, I plan to donate it.