Uses 2 m3x15mm screws. Works for Garmin Varia RTL515 and I assume other current models. This is the radar that's integrated into the EUC world app. It's extremely useful on more rural high speed roads that you can't keep up with traffic on. The beeps will let you know to stay to the side so the car can pass. I printed this in TPU with traditional zigzag supports touching the buildplate
Download from thingiverse