Specification Brand : kweiny BulletPoint : 3D Printer A4988 DRV8825 Stepper Motor Control Board Expansion Board BulletPoint1 : Compatibility: Matches all 3D print extruder heater block offered from E3D Makerbot, MK8 Makerbot RepRap , etc. BulletPoint2 : High temperature resistance: Both PTFE tape and heat insulation cotton, short term resistance to temperature 300 degrees Celsius (572 Fahrenheit ), long term resistance to temperature 260 degrees Celsius (500 Fahrenheit ) BulletPoint3 : Function: Keep heater block temperature constant, so that improving print quality, save electricity and prolong the service life of heater and temp sensor BulletPoint4 : Use-method: You can cut cotton into the right size and hole according to your needs, then stick it firmly with PTFE tape. 5 sides of heater can be wrapped up in cotton, except the surface installed heater wire, but you just need to use 1 piece cotton. You can also use PTFE tape to stick any other parts on your 3D printer BulletPoint5 : Material: The heating insulation cotton is made from heat resistant ceramic fiber, the tape is made from PTFE BulletPoint6 : 【Application】 Compatible with Bambu Lab A1,A1 Mini Combo. If need to use on other size 3D printer. Please measure your printer size before ordering. Color : Yellow CompatibleDevices : 3D Printer CompatibleDevices1 : Laptop CompatibleDevices2 : Smartphone ExternallyAssignedProductIdentifier1 : 732140926765 ExternallyAssignedProductIdentifier2 : 0732140926765 IncludedComponents : 1 Set Enclosure Cover ItemName : Kweiny Heat Insulation Cotton 10PCS and PTFE High Temp Tape for 3D Printer Makerbot Hotend ItemPackageDimensions_Height : 16.002 centimeters ItemPackageDimensions_Length : 1.1938 centimeters ItemPackageDimensions_Width : 7.0104 centimeters ItemPackageQuantity : 11 ItemTypeKeyword : 3d-printer-accessories Manufacturer : xingzhu Material : Cotton ModelName : Tarshyry0fqabnwc7y ModelNumber : 3D Printer NumberOfBoxes : 1 NumberOfItems : 10 PartNumber : XZ-3DCT11 ProductDescription : Notice: 1. After replace the nozzle, Please recalibrate the distance between nozzle and build plate to ensure the quality of print parts; 2. Please do not use flame to test their heat resistance, because the flame's temperature is much higher than 300 degrees Celsius (572 Fahrenheit ).