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

Works fine. No issues.

Silicone socks are the best thing since sliced bread! These will insulate the hotend to keep temps stable as well as keeping it clean! This is a great price for 3 of these.

These worked great on my elEnder 3 pro.

Installed with no issues, running for 2 days now and Im very pleased (installed on Ender 3 Printer)

Had initially thought it didnt fit my CR-10 V2 but realized that there was just a bunch of melted PLA around the heater than needed to be removed.

works like a charm

Fits perfectly heats fast easy to clean.

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

Fit perfect an does what its supposed to

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!)