The packaging for the Scythe Ninja.

Accessories included in the package in clockwise order: An A64
Bracket, Manual, Backplate, 4 plastic washers, thermal paste, wrench, 4 short
screws, 2 long screws, 2 bolts and a pair of retention bracket for the LGA775
socket.

You are able to attach a fan on all 4 sides of the heatsink
as clip mounts are available on all 4 sides. Kudos to Scythe for this, as you can attach the fan accordingly to the air flow of your case with this implementation.

The fins are bonded tightly onto the copper heatpipes, allowing maximum
thermal transfer.

A very well machined base, flat and smooth enough