46Pcs Rubber Grommets for Wiring, Premium Soft Double Sided Rubber Grommet Kit, Black Rubber Firewall Grommet Kit Drill Hole 5/8in 13/16in 7/8in 1in 1-3/16in 1-6/16in

Not as stiff as I had expected, which is good imo. I bought them to replace the o ring seal in a brake fluid pressure pump but plan to use the rest in various electrical wiring jobs. I went to use my new brake pressure pump a while back and discovered the OEM o ring inside had either shrunk or was too small to begin with. It was a bad design and it would not generate any pressure. So I got out my 4 box sets of hundreds o-rings from Amazon and of coarse nothing would fit the 33mm pump cylinder and they were all too skinny anyways. I tried making my own out of a silicon mat and that half worked. So it turns out the 1” grommets in this set were a perfect replacement for the OEM pump seal. I cut out the middle of a grommet and turned it into 2 flat washers and installed both in the brake pump. Fit great, and works great now. If you have a pump like this one and the pump isn't working, these grommets will fix you up.

Rubber Grommets worked great for filling in the drilled holes on my boat. I highly recommend this product. I ordered a variety pack well worth the cost.

Seem to work well so far

Good price and already used two of them. Nice to have such a varied assortment of sizes.

My wife came up with another project and it required putting an electric cord through a steel panel. The large grommets in this kit were big enough to allow the male plug end to pass through and still closed up nicely around the cord.

This was a handy kit for a wiring project. I bought them just to get 8 or more 1/2 x 3/4 grommets for suspending the heat shield in a Volvo. I ended up getting McMaster parts for that task (harder rubber) but these would have worked if necessary. Some of the hole sizes in the kit are a bit strange but I was able to use several on a wireway install and was happy to have a kit like this. The break-away disposable knife is pretty neat, too. It is much pointier than the typical orange units you see and does precision cutting of the grommet webs. It's probably pointier (or about the same) than a #11 Exacto but because it's breakaway the point can be extended way out.

Was impressed with the flexibility, very soft and flexible. Also a good selection of sizes.

Drilled hole in my side bags to run power for phones to keep them charging while on Bluetooth and this worked to keep water and dust out of the bags