This part serves as a method of mounting a Logitech C920 webcam to an IKEA Tertial lamp arm. This adapter allows us to use the lamp arm as a way to get the webcam higher off surface as we create top-down video demonstrations. This is ideal for using a USB-webcam with Google Hangouts or Adobe Connect. In addition, you can aim the webcam at your presenter too. The mounting hole will accommodate a 1" - 1/4" x 20 bolt and fits well snugged up to the PLA and into the mounting hole of the webcam.