CCTREE 3D Printer Hotend Silicone Sock Heater Block Silicone Cover for Creality Ender Series, CR Series, Anet A8, MK7/8/9 Hotend, Brown,3 Pcs

Fits great and keeps filament junk off heater block

Perfect fit cr10s

Marlin firmware has safety features that detect thermal runaway, but if your print cooling fan hits your heater block, it can cause a spurious trip (PID tuning is another part of fixing this problem)... the block cover helps with this issue, as well as keeping the thermister bead and heater cartridge better captured in the block (although no substitute for a solid connection!)

Does not fit

Perfect for the Ender 3 3d printer!

If I could give these zero stars I would. These are absolutely worthless, don’t even come close to fitting. The only saving grace for me as I throw these in the trash is I didn’t spend more money on this vendors product. Unless you want to cut and somehow glue these pieces of junk in place don’t waste your money. Anything branded cctree in the future will be avoided by me

Fits well and makes it easy to clean the head it you get clogged.

This doesnt fit MK8 CR10s, even the item say MK9. Dont buy if you have MK8 nozzle block if you have the upgraded module it come with MK8 nozzle! Had to return it!

Fits perfectly in my ender 3 pro. Would recommend this product to any one how has ender 3 it is easy to install, works great, and keeps the heat were it need to be.

Keeps my hots end temps right where I put them no temps fluctuations