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

Perfect fit for stock Ender3 V2.

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

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.

It does a fantastic job keeping things cool. I’m able to run PLA parts coolers almost touching the extruder.

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.

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.

drop in replacement. no issues. came in silver.