Heat Air Vent Deflector, Adjustable Between 8" and 15", Heat Resistant Floor Vent Magnetic Deflectors/AC Vent Deflector/Baffle

works well, does not fall. My vent has screws protruding on the sides and the magnetic vent cover has to go over that. Even though it tilts a bit due to the vent screw stopping it from staying flush on tbe vent, it hasn't fallen after half a year of use with AC and heat. I'd consider that solid.

This product is effective for re-directing air-flow from a vent. If you have a couch or something that blocks the airflow you can use this product to channel air-flow. If you want to re-direct the hot or cool air into a different area this product is very effective. If you don't have a metal register you can just use some Velcro to connect it to say a plastic register or even double-sided tape would work.

These work as intended. Magnet is solid so vents stay in place. The plastic is clear so not obtrusive.

Work well to deflect airflow. Adjustable width, and magnets to hold to register.

Magnetic attachment makes these simple to use.