Tired of those coins, toys and crumbs falling into your duct work, only to disappear forever? Protect the air you breathe and keep small items from disappearing with Deflecto's Floor Register Nets. This mesh net won't restrict airflow, ensuring proper ventilation in your home. Quick and easy installation – no tools required. Available in multiple sizes, they can easily be installed below your existing floor registers in minutes. These are not intended for use with flush mount floor registers. To get the most out of your floor register nets, inspect and clean them regularly. | Deflecto | | RFN124 4 in. x 12 in. x 0.1 in. Register Nets | Black | Best Buy