Accord APFRDFU Heavy Duty Magnetic Adjustable Air Deflector for Floor Registers
Brand: Accord Ventilation
Color: Original Version
For use with floor registers only, not for wall or ceiling
Use with central heating and air conditioning only
Made of polycarbonate for temperatures up to 212° F (100° C.) 
Adjusts from 10-inches to 14-inches
Easy magnetic installation works with steel floor vents