M5 5-Pack Silicone Cover

Fit great fast delivery

These covers are good but they need to be changed out when you have a big blow out. That's why you buy 5.

Good price point

These things don't make or break your print experience, but it's VERY nice to have a clean protective cover over the heater block to just keep things RECOVERABLE should you get an extrusion excursion (globs of plastic). Nobody wants to spend a lot of money to keep that part fresh, but this is about right. I don't break or damage them often, but it's nice to slap on a new one without worry for lost investment.