Performance Tool W5201 HNBR O-Ring Assortment Kit (270-Pc) - High Temperature & Oil Resistant Seals for Automotive, Plumbing & Tool Repair - Durable Organizing Case for Easy Storage & Access

Normally, I would never purchase anything in an assortment pack as I know I'll likely never find a use for all the different sizes and types. Think assorted screws, nails, buttons and so on. However, I needed to replace the grommet for the mass airflow sensor for my 2007 Jeep JK as the original had rotted away. Just try and confidently find the right size. I got swayed into purchasing this assortment as I found I was constantly digging into my sons box of assorted shrink tubing I was needing for different projects. (I finally bought my own assortment as well as a replacement box for my son.) Maybe an assortment of grommets might be handy too.Some of the larger grommets are solid (but thin) in the center which makes them perfect for running wires from the engine compartment through the firewall into the cabin. They would have been handy when I installed my rock lights and CB, but that was years ago. We've got a lot of wiring to do on my son's old CJ so no doubt these grommets will come in handy in doing things properly.These grommets are soft and flexible, but stiff enough to remain well seated once installed and they appear durable. It's a nice assortment and I expect I'll find uses for many of the different sizes in the future rather than resorting to redneck engineering. My mass airflow sensor is now seated properly and I expect that new grommet will last just as long as the original.So, we have a large assortment of grommets many of which you may never use, but when you do need one it's certainly nice to go fishing in this assortment rather than having to go to the store or hunt online for what you need and then have to wait for it and hope it's the correct size.This is a nice assortment of quality grommets at a good price. I expect I'll find lots of uses for this assortment in the years to come.