Uniflame Windscreen Height: Approximately 12cm Width: Approximately 23.5cm I purchased this from Montbell and used it once, but I'm selling it because I don't have a chance to use it. The right stopper, which is for self-standing, originally opens up to 90 degrees, but now opens up to 180 degrees. See photo 5. The left stopper has no issues, and it can stand on its own. Please refrain from purchasing if you are sensitive to used items. ⚠️Please check the profile and photos before purchasing. Mountaineering Outdoor Gas burner Camping Windbreak Stove