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 = 3mm1" = 1.75mm  Package Included:  1 X E3D V6 Extruder Metal Heat Sink
SIZE
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$4.93

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 = 3mm1" = 1.75mm 
Package Included: 
1 X E3D V6 Extruder Metal Heat Sink