Fifty Shades of Gray is really a notepad made up of 200 clear pages encompassing 50 different shades of grey, Orange News reports.
The novelty notepad is being sold on Amazon for £12.99 and creator Shed Simove has said that he hopes the product offers "deep and satisfying pleasure" to readers just like the series on which it is inspired.
The blurb teases that the content "gets darker and darker" throughout.
Fifty Shades of Gray is the latest in a long line of spinoff products that are being released capitalising on the runaway success of James's series.
James herself last week signed a deal to release a range of Fifty Shades-inspired clothing.
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