Features: Hieve optimal control and energy efficiency with this adjustable window panel, crafted from hard/soft PVC for flexible sizing to perfectly fit any standard window frame while blocking 85% of heat transfer. Its innovative PVC construction combines rigid support panels with flexible side flaps, creating a weather resistant barrier that maintains shape through seasonal temperature changes and repeated adjustments. Ideal for homeowners in regions, apartment dwellers with fixed units, and users seeking to reduce cooling costs by improved thermal insulation. Securely install in seconds on residential window, commercial storefronts, or office building apertures where direct sunlight causes uneven cooling and energy waste throughout daytime hours. The clip and reinforced corner grommets ensuring tear resistant even with weekly adjustments, making reusable solution for year round climate control needs. Specifications: Component:PVC Type:9/10/11/12 Size:As shown in the picture Package Includes: 1Pc air conditioning Side Panel note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.