【Material】Made of high quality PVC material,It is UV-resistant, waterproof and rainproof 【Updated Velcro】Not only does the velcro closure keep it longer and firmer, you also don't worry about the velcro strip coming off on a rainy day. 【Barrier against hot air】The double zip design, which perfectly connects the window to the frame, ensures a good seal and therefore good long-term maintenance of the room's cooling temperature 【Protect the environment】This air conditioner window seal can effectively reduce energy consumption and carbon dioxide emissions, [Package] 1 x Roll of self-adhesive hook and loop tape ，1 x Complete Window Zipped Seal，1 x Full set of instructions