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 perfectly heats fast easy to clean.

Fits great on cr10 and definitely makes more stable temps

Allows for steady nozzle temperatures.

Does what it is to do

Perfect fit cr10s

Fits well in Tevo tornado

Great deal for 3

They work well

Better than stock,my stock one melted (ender 3 pro)

they fit perfectly and I now have some spares.