I only have one example of this in my collection, but it exudes quality. The cover is plastic, and isn’t adorned by any needless frills.
The cassette shell itself is made of glossy black solid hard plastic, with a weightiness to it that’s hard to describe. The windows are tinted blue and the the reels are unique.
The label of on the side was obscured by another label over the branding. Oh well.
A second sample was found in the collection, which was subtly different as it had a narrower flap. The hubs are very similar though.