[Three positions of the vent]Closed: Fully closed the windshield vent to block wind, water, debris out, in order to keep warm inside the cab.Half Open: Opened the a little bit the windshield vent to get the defrost & defog features, which let you have the best front vision.Fully opened: Fully open the windshield vent to airflow, which lets your cab get cool. [Install the Vent As You Want]: The Vent can be placed on the front windshield, rear windshield, and even the roof. [Ventilation, defrosting, defogging]: Windshield vent is designed to add ventilation(full opened mode) and defrost & defog(half-opened mode) features to windshields.Provides you a cool driving experience in hot weather, ensures a clear front vision in cold weather. Can efficiently block wind, water, debris out of the cab in closed mode. Type:Windshield Vent Condition: Fitment: For Commander, For Trail/Sport, X3 For Pioneer 500/ 700 /1000 For Full Size Gator XUV/ For Midsize Gator XUV/, For 1000, For Mule Pro, For Teryx 750/800 For RTV 1140 For RTV 500 For RTV 900 For RZR 570 /800 /800S /900 /900S /1000S /1000XP /Turbo For RZR Pro XP 2020-2022 For Textron Havoc, For Textron Wildcat, For , For Viking, For , For YXZ Intallation Tips: The windshield needs to be cut during the installation . Pull the handle to adjust the vent. If you feel that the vent is too tight or too loose, you can adjust the screw on the side of the vent with a wrench. Colour:Black Material:ABS Package Contents: 2 x Windshield Roof Vent Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.