SAFE AND CONVENIENT FIREWALL GROMMET KIT- Protect your wires from cuts and chaffing with this universal firewall boot. Perfect for cables, hoses, conduits, and power lines. These firewall boots are highly adjustable and reusable. You can easily trim to the next width if you need to add more wires. No need to drill another hole or buy another set of grommets!

TIGHT FIT FOR A SOUNDPROOF AND WATERPROOF SEAL - Don't settle on firewall boots that won't fit the wire bundle snuggly, allowing noises from the engine to pass through. These universal firewall boot's grommets have sturdy and thick collars that will tightly fit on the drilled hole. The universal-fit ensures that the wire bundles are tight no matter how thick or thin they are.

FITS A WIDE RANGE OF WIRE BUNDLE THICKNESS - This universal automotive grommet can accommodate anywhere from 3/8-inch to 1-inch bundles. You won't need to buy different-sized grommets for different applications, just trim the boot according to the bundle's thickness and secure it with a zip tie. It's simple, convenient, and most importantly, effective.

EASY, NO FUSS UNIVERSAL FIREWALL BOOT INSTALLATION - All you need is a 1 1/4-inch hole for installation, scissors or utility knife to cut the boot's tapered end according to the thickness of the wire bundle. From there, all you need to do is install the firewall boot on the drilled hole and run the wire through it.

HIGH-QUALITY PRODUCT - These firewall boots are using high-quality, weatherproof rubber. It is suitable for numerous applications not only on car firewalls but also in boats, trucks, and even machines that need that secure transition for wiring.