Yep, it's on our website! There will be a modification to the next batch which will make the face at 45° and so easier to see from your position when you are adjusting the primary mirror. We sell it with full instructions on how to collimate the system, including how to drop your diagonal etc. The Cheshire we sell also has the same instructions, length is 140mm, same as the Celestron Cheshire and it's in stock. Sorry if I have breached any protocols here regarding advertising, but I had to set the record (and spelling!) straight.
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