This oversized Imperial Shatterproof Adjustable Air Deflector functions as a vent cover for floor registers, deflecting warm or cool air away from walls or furniture for optimal coverage in any room. Ideal for use with central forced air heating and air conditioning systems, it provides comfortable, circulated airflow and energy savings. The air deflector is made from clear shatterproof plastic for lasting reliability, and it adjusts from 9-in to 15-in to accommodate a variety of register sizes. Attached magnets allow for easy and secure installation on metal floor registers, and self-adhesive gripping tape is included for use with plastic and wood floor registers.