Bloque de calefacción de 10 piezas boquilla de algodón accesorios de aislamiento Hotend
1 x 10pcs Heating Block Heat Insulation Cotton For 3D Printer Hotend Nozzle. 10 Pcs Quick-swap Nozzle Kit Hotend Heating Block Insulation Pad Bed Heater. - This heat insulation cotton is used for 3D printer nozzle keeping warm.