Aokin 3D Printer Hotend Silicone Sock Heater Block Silicone Cover for Creality Ender 3, Ender 3 Pro, Ender 5, Ender 5 Pro, CR-10/10S, Anet A8, MK7/8/9 Hotend, Blue, 3 Pcs

Its perfect fit I like the color blue. It matches my machine.

These do not fit an Ender 3/3 pro properly. Plain and simple doesn’t fit.

These are great to have to prevent heat block buildup. They also make clean up easier whenever messes happen.

They work great on ender 3. And cr10s at lease it works for my 2 printers

Easy to install and easy to clean.

Some melted filament had gotten into my original sock and there was a noticeable smell when printing with it. After cleaning and putting on this sock there was still a smell in the beginning, which could have been from the old melted filament, but it went away after printing with it a couple times. Overall, does a great job at replacing an old silicone sock and has the necessary cut on the left side for the different shaped all metal hotend.

I have a stock CR-10s hotend and tried a couple of other covers that didnt seem to work (fit) well. The one I put on fit as it should and seemed to be a quality product. It should be a while until I need another cover since 3 came in the package, but I can recommend these. Just double check (measure) your hotend to make sure you get the correct cover for your use.

The socks do help a lot with keeping the hotend from getting all gunked up and as far as insulating for temperatures, not sure if it really helps too much. Performance I have found with the end piece will not really be affected =)

These are legit silicone socks for MK9 hot ends. I use this for my CR-10 printer with an upgraded Swiss all metal hot end. The sock this one replaced lasted me about 3 years. These are definitely wear items. They get hard and burnt over time.

Should help stop petg from sticking to the nozzle more. Bonus it helps heat stabilize.