The Kenworth T400, T450, T600, T800, W900 Grey ZenEclipse Door Window Cover Set is a practical and efficient solution for truck drivers. This set includes driver and passenger window covers, made with 7 quilted layers, an aluminum radiant heat barrier, 1/4 inch foam, and 3 layers of polyester. The suction cup makes it easy to install in seconds, and it fits most Kenworth T400, T450, T600, T800, W900 models. Made in the USA, this window cover set is a must-have for truck drivers looking to improve their driving experience.