Description: It can be freely stretched and adjusted, adjustment range: 43-140cm. suitable for most vertical and horizontal sliding windows. Made of quality PVC material, durable, wear resistant, anti-extrusion, anti-aging, and can be used year after year. Embed the plates into the window track and clamp them to achieve a good sealing effect, which can keep your room cool at all times, without air-conditioning leakage, preventing hot air from entering, and saving power. Simple and stable fixing method for install and disassemble easily. easy to store, and save space. Set include 4 plates and screws, 1 connector; you can use a 2-plates combination, 3-plates combination, or 4-plates combination according to the size of the window. Specification: Material: PVC. Size Chart: Plate: 16x43cm/6.3x16.93inch, 15.5x43cm/6.14x16.93inch. Package Includes: 1 Set Portable Air Conditioner Window Kit. Note: Color might be slightly different due to the color calibration of each individual monitor. Please allow slightly measuring deviation due to manual measurement.