It's just a 3D printed hand.. it can possibly look aestheti-

The video likely performed well due to its intriguing visual transformation from a basic 3D printed hand to a more sophisticated one with integrated lighting, tapping into the 'tech' and 'engineering' interests of the audience.

The video showcases a 3D printed hand, first in an orange and white design, then transitioning to a matte black version. The matte black hand features a circular LED light pattern on the palm, suggesting a more advanced or aesthetic design.

The video prominently features a 3D printed hand, first in an orange and white color scheme, and then in a matte black version. The matte black version has a circular LED light on the palm.