Six servo motors pull tendon wires through each finger, curling them closed just like a real human hand. Elastic bands snap them back open. An Arduino brain controls the whole thing — plug it in via USB and it runs instantly, no coding needed.
Out of the box the hand runs a automatic sequence — it closes into a full grip, holds for 5 seconds, opens back up, waits 5 seconds, then repeats. Once you've built it and seen it move, the instructions walk you through how to modify the code yourself — change the timing, control individual fingers, or build your own sequences entirely.
"Note: the camera gesture control feature seen in some of our TikTok videos is part of a separate add-on kit coming soon. The base kit includes the automatic open and close sequence and full Arduino code access."