Meco 1.75mm or 3mm Metal Extruder Heat Sink for Proximity Remote J-Head 3D Printer

Specifications: Material: Metal Size: approx 4.5cm*2.3cm For 1.75mm,3mm J-head available Feeding method:Proximity ,Remote available Remote 1.75mm/3mm Universal Note: Please choose the size what u want. 3mm = 3mm 1" = 1.75mm Package Included: 1 X E3D V6 Extruder Metal Heat Sink