The USB 2.0 (8GB) Pendant by Japanese design studio Claustrum in 'Concrete Matte'. Each item is handmade and slight variations in color may occur.

Stainless Steel Concrete Matte Finish.
USB 2.0 / 8GB.
Made in Japan.

Size: 74x12x4mm / Chain: 750mm.
Weight: 15 gr.

Curious how it works?
https://youtu.be/AtqQV10bfmY