The Vevor dryer vent window kit is designed to fit 4-inch exhaust hoses and adapt to vertical or horizontal sliding windows. Its adjustable panel extends from 17" to 61" to suit different window heights. Built from PVC and PP materials, it is made for durable indoor or outdoor use. The design includes fine mesh, slanted louvers, a hose clamp, and a sealing strip to help maintain clean airflow and improve insulation. It is intended for an easy, secure installation with most standard aluminum flex ducts.