19-Pack (10 Assorted Sizes) 000# -7# Solid Rubber Stoppers

Loved that it came in a variety. Great to purchase alongside the cleaner

Nice set of rubber plugs. I used them to plug all the coolant hole in a small block chevy gen 1 engine to keep contamination out of the engine during a head gasket replacement. Worked perfectly when cleaning the block with scrapers and razor blades. Got another set of smaller ones that worked the same for the smaller holes. Used set screws in the head bolt holes. Plugs were easy to remove after cleaning using an icepick.

They fit really good

I bought these to help temporarily seal fishtank ports and they worked well. They had a good seal and were easy to remove when I was done. The material is not bad but over time they began to crack. After they cracked I did not continue using them.

When cleaning parts or testing parts to make sure they hold pressure, you honestly can't have enough of these rubber plugs sitting in the tool box.I've used these in a number of project and I'm quite happy with their performance.Yes, I would recommend these stoppers, just double check the specific size you need for your project, allowing room for a snug fit and you're good to go.