Radar Detector Car Dash and Windshield Mount We have combined our heavy duty suction mount system with a mounting plate. The suction is rated to hold 20 pounds. Once it is attached to your windshield, it isn't coming down unless you want it to by pressing on the suction release. The angle of the mounting plate can be adjusted up and down. Your device attaches to the mounting plate with a heavy duty strip which we provide. We also include a dash plate with double sided tape so that the suction can adhere to your dash.