These are solidly constructed letter racks or letter trays.
They might not be the latest of designs. In fact I believe this design has been around for many years so I guess it must be time-tested - a classic.
I prefer function over form and these racks do the business - so to speak.
In an office environment you want equipment you can rely on and which will serve you for many years. I believe these racks deliver in this respect - albeit they are expensive. I suppose it is the case of the old adage of 'you get what you pay for'.
You can maybe tell from this review that I have purchased these types of racks in the past. In fact I purchased my first one over 20 years ago.
Finally, as usual, Amazon's service was excellent in shipping out these goods and ensuring that they arrived safely.