Official Creality Ender 3 s1 Heater Silicone Sock, Heater Block Silicone Cover for Creality Ender 3 S1/Ender3 S1 Pro/CR10 Smart Pro/Sermoon V1/Sermoon V1 Pro 3D Printer (Pack of 5)

Exactly what I needed my block cover ripped while I was cleaning the nozzle for my CR-10 V2 these worked great for replacements. Easy install A little on the looser side but they work.

Overall these seem to work well at insulating my 3D printer hotend. I was having issues getting my hotend to heat up to the temperature I wanted, but one I installed one of these it was able to heat up to my desired temp and then a little more. Pros: - Solid quality - Good insulation - Easy to use Cons: - One that came in the pack was miss shapen a bit, nothing major that really affected function

Picked this up as an upgrade for my M3D Crane Bowden printer. The sock fits great and had minimal install steps.

I had no issues installing a new boot on my CR-10V3, It slid right on!

I tore down my hot end for the first time and destroyed the insulation. After several attempts of printing without any, I thought my thermister broke. I happened to find that silicone socks exist and tried these. All my problems were fixed and temps are kept as well or better than the stock insulation. Easy to install and even kept the heat cartridge in place after I lost the grub screw. The only con is a slight smell when it first heats up, but it dissipates after a few minutes.

I finally had an oops changing out nozzles when I had some leakage and gunked up threads on my stock heat block on my Ender 3, and ended up stripping the threads in the block. These are an easy replacement. Installed perfectly, has what looks like some sort of anodizing that wasnt on the stock unit, and the silicone heat socks are the nicest Ive seen, even partially covering the nozzle for maximum insulation.

Ordered these and they do not fit ender 3 they are too small. Incredibly dissatisfied

Was as expected, works great

The actual silicone socks that were delivered don’t match what was shown in the pictures. They don’t have the extra hole for the grub screw.

These fit the hotend well, appear to be OEM or just as good as OEM... we never can really tell if Creality parts being sold online are original or knockoffs, but these seem good to go.