Ultra Slim Ring Box with Sliding Ring Feature

Normal ring boxes too bulky?
Having trouble hiding a special surprise on your person?

Well take a look at this!

Part of my Ultra Slim series, the this ring box has a sliding ring feature that is reminiscent of USB thumb drives. It is still small enough to fit in the fifth jeans pocket and I have redesigned the ring holding mechanism to more securely hold the band of most rings.

Technical notes:
The actual dimensions of the ring box are: 2cm x 4cm x 7cm.
Due to the nature of the box size and the actual ring holder mechanism itself, only rings of certain criteria will fit well. The box's internal space can accommodate a ring that is 15 mm at the top (where any large gemstones may be) and up to 6 mm at the band. The band can possibly go higher, but I have not been able to test it myself.

Special notes:
Sometimes, due to the printing process, the lid provided will not fit properly. This should not really be an issue since you can add a few thin layers of simple school glue (or even clear nail polish) to widen the part that grips the box inside rim. Should you decide, the box also functions just fine without the lid.

At first, the sliding mechanism will feel a little rough, but that will become much smoother if the slide is used a handful of times.

Below is a video demonstrating how the ring box works as well as how to assemble the ring box itself.