【4-Pack Complete Coverage】This 4-pack ceiling air deflector set fully surrounds your cassette air conditioner, each square vent deflector snaps securely in place to redirect airflow evenly across the room 【Adjustable Airflow Control】The adjustable panels on this air deflector let you fine-tune airflow direction, the vent deflector eliminates direct drafts and prevents cold spots in offices or living spaces 【Hook-Type Installation】These ceiling air deflectors install in seconds with the included clips, the vent deflector stays firmly attached to the grille and can be easily removed for cleaning 【Durability & Sturdy Build】Made of plastic, each air deflector resists warping from long-term use, the vent deflector maintains its shape and performance through seasonal cooling cycles 【Universal Fit Design】These square air deflectors are designed to fit most standard cassette-style air conditioners, the vent deflector works with 4-way ceiling vents for a snug, secure fit