I designed this model so that you can use your mouse effortlessly while sitting on your sofa or couch. The inner diameter of your cupholder on your Sofa should be around 90mm (mines was 90.5mm so I added a bit of tape to secure it nicely) for it to work. I added a pause in the print so that you can swap out colors if you dont have an AMS. This is also good for putting cups on but if you want to put hot cups, I would recommend to use PETG even though most cups are designed to keep the bottom cool. (I used PLA) Comment if you have any questions.