3mm thick heating block cotton For 3D printer hotend nozzle heat insulation lot

3mm thick heating block cotton For 3D printer hotend nozzle heat insulation lot. Heat insulation cotton: Length 70mm/2.76in, width 20mm/0.79in, thickness 3mm/0.12in. Do not run the device unattended when the 3D printer is initially running. Heating Block Cotton and Polyimide Adhesive High Temp Kapton Tape.. Condition:： New: A brand-new, unused, unopened and undamaged item in original retail packaging (where packaging is applicable). If the item comes direct from a manufacturer, it may be delivered in non-retail packaging, such as a plain or unprinted box or plastic bag. See the seller's listing for full details. See all condition definitions ： Brand: ： Unbranded/Generic ， MPN: ： SB2B103227QIFZ9339 ， 。