This cradle allows you to get your FlightScope Mevo+ setup and aligned quickly. Flip on the switch and a vertical laser line is drawn from the cradle, through your ball, and on the target. Use the screws to align the unit front/back and left right with the built in level. The horizontal laser line confirms you are level with the target area. The built in stops automatically set the Mevo+ angle at either 12 or 18 degrees. If you are using 12 degrees, the remaining area can also hold your USB power block. The screws are made of high quality 3D printed material so there is no metal in front of the radar to block the readings.