I first saw the Head Metallix Drive squash racket in the process of looking through the rackets in the Squash Pigeon video.
This is difficult to find for sale. I did see it in the UK:
Buy (UK): topsportuk.com
There also seems to be a version called the Head Metallix Drive Pro, which is in black:
Image via amazon.de
Also difficult to find, though I did see it in a couple places.
Buy (Germany): amazon.de