thickened PVC for better wear resistance The hose is flexible and that will not bend or deform at high temperatures, ensuring repeatable use for years Portable window vent kit panels can fit perfectly into tracks for an airtight seal It effectively exhausts hot air into and keeps room cool The plate can be perfectly embedded into to achieve a tightly sealing effect, keep the indoor temperature comfortable and cool, and Say goodbye to stuffy, uncomfortable rooms and hello to cool, refreshing air with this window sealing kit Window sealing kit is suitable for most vertical and horizontal sliding It consists of 3 plates, with an adjustable range from 55-160cm, to meet the needs of different sliding door