• This is an all metal hot end upgrade for MK10 style extruders
• The lower thermal break is made from stainless steel and the colder upper part is made from aluminium
• This upgrade includes a modified thermal barrier tube and modified nozzle
• Thermal barrier tube is made from 2 different materials
• Easy to Use

May come in a different bag, but all parts are genuine new and unused Micro Swiss from my spares.