To protect the thermal paste application from damage during shipping, a transparent plastic cap is sitting on top of the cooler base.
The installation couldn't be easier, no tools are required. You just put the mounting brackets on one side into the tabs of the socket mounting. Put the other bracket on, and move the lever. Done!
The suction force between cooler base and CPU is so strong that I pulled the CPU out of the socket, even with the lever down! When you try to remove the cooler, rotate it while gently pulling up, do not pull straight up with a lot of force.