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

Glad that I found the correct ones. Good fit.

These are a perfect fit, well made and attractively colored.

Perfect fit for my Ender 3

I had issues with my part cooler blowing on my hot end and caused my printer to work hard trying to keep it at the correct temperature. After installing the Silicone Heater block cover the temperature remained consistent and the printer did not struggle to maintain temps. Good quality with no issues.

Does not fit Ender3 inner diameter is not 20mm

Very well made. Excellent quality for my needs.

I love these. Took a second to put on and is a great alternative to stock.

Was initially skeptical about price and quality but it fits the Ender 3 hotend great without any issues. Color is a bit strange but functional nonetheless!

Good.. very good

Not my favorite and and the fit is off, but I honestly bought it because of the color. It does what its supposed to and protects the heater block well. Doesnt melt but is warm if you accidentally touch it. I ruined one trying to make it fit, but again Im not totally mad. Just dont recommend for an Ender 3.