Feature:1. Versatile Compatibility: Suitable for most greenhouse windows, roof vents, these supports provide a versatile solution for optimizing your greenhouse environment, ensuring compatibility with a wide range of greenhouse designs.2. Aluminum Construction: Made from aluminum, the window support rod is strong, rustproof, and have high load bearing capacity, ensuring they remain intact without breaking or deforming even after extended use.3. Optimized Temperature Control: Greenhouse window support allows you to open or close windows and roof vents based on greenhouse temperatures, ensuring plants thrive in optimal conditions by preventing extreme high or low temperatures.4. Safety First Design: The greenhouse window opener features rounded corners to prevent any potential injury to your hands, adding a layer of safety to your greenhouse maintenance routine.5. Easy Installation: The bolts are the right length and can be replaced directly, as many roof vents are bolted under the glass. Screws are included for fast installation.Specification:Item Type: Roof Vent Opener BarMaterial: AluminumSize: Approx. 39cm / 15.35inWeight: Approx. 65.00g / 2.29oz.Package List:1 x Support Rod2 x Plastic Parts6 x Screws