5pcs 3D Printer Heating Block Cotton Hotend Nozzle Heat Insulation 3mm

This heat insulation cotton is used for 3D printer nozzle keeping warm, the heating insulation cotton is made from heat-resistant ceramic fiber, the product sizes can be customized according to customer needs, the benefit for keeping the key parts of the 3D printer – heating aluminum block warm, is making the internal temperature flat, saving power,and energy.
This High temperature resistant cotton can work for a long time in high temperature of 900 degree.
Size: 70mm*20*3mm +/-0.1mm