ITEM NAME:40 X 40 X11mm Aluminum Radiating Black Fin Sink FOR Makerbot Mk7 MK8 Description: Heat sink for 3D Printer accessories Mk7 MK8 Dimensions: 40 x 40 x11mm Aluminum material, fast heat disspation Chip spacing and neat, larger heat dissipation area Surface oxidation treatment, heat fast, high hardness, beautiful color Specification: Material : Aluminium Size : 40mm x 40mm x 11mm /1.57" x 1.57" x 0.43"(L*W*H) Package Includes: 1PiecexHeat Sink SKU: DMO0021153463005257.Heat sink for 3D Printer accessories Mk7 MK8. Material : Aluminium. 1PiecexHeat Sink. Aluminum material, fast heat disspation. Chip spacing and neat, larger heat dissipation area.