Creality 3D Printer Parts Upgrade Heater Block Silicone Cover and Brass Nozzle Tips for MK7/MK8/MK9 Extruder Hotend Sock Heat Insulation for CR-10,10S,S4,S5 Anet A8 Ender 3 Pro V2

Other brand smelled horrible when heated and smoked. These are fine.

drop in replacement. no issues. came in silver.

Cheap enough to change when switching my Ender over from long PETg print back to PLA. They work great.

These block socks fit better than some others Ive tried. Would buy more again when I need some.

Im updating my review to 1star and a massive warning - DO NOT BUY THESE. After the first one melted nearly 24 hours later I thought maybe it was just bad so I swapped in another...same thing. Melted in under 24 hours of running at 250C. The third one I swapped in, heated up the nozzle to feed the filament, I noted MASSIVE offgassing and the silicone had already started melting nearly immediately. DO NOT BUY THESE.

These work well on my Tevo Tornado. These are not supper tight but work. Make sure you put it on so the sock covers part of the Thermister. I was getting thermal limit error messages when I cut the sock to fit around the Thermister. Changed it and my printer works great now.

Unlike some of the other Silicone Covers available, these were just like the originals. They fit and work just as good as the original cover that come with the printer.

I bought these mainly for the heat socks, I really dont need the nozzles as I already have tons, so I cant speak to them, but the socks are great! And I cant complain about getting some nozzles too, it was a very good price for the package. The socks are exactly what I was expecting. They pop right on, and I havent had one fall off yet, they fit snug. Nothing has caught fire lol, they hold up to the heat well, not much else to say! They are a basic accessory with a simple purpose, theyre doing exactly that, and I have no complaints. Thank you!

Not much to say, standard heat sock. Seem to hold up pretty well to wear.

Replacment rubber covers, not much to say to be honest. They fit my printer fine and work as they are meant to. Good value.