Gentle Knock

The All-Purpose Lockpick, called Gentle Knock, is one of the Artifacts that have been appraised as useful item for Delvers.

Description
It's a processed multi-purpose tool Artifact made from "thinking stones" which are frequently excavated in the Great Fault.

The user can control it with their mind after it has been calibrated and, by conveying one's thoughts/impulses to the controls, the tip changes form.

Its Pincers can be used for forcing things open and the controls located at its other end.

The protruding end between its pincers can change shape into complex forms to fit different keyholdes, but controlling it is complicated.

The user must control all of the figures at once, while "moving specific fingers in the desired trajectory and rhythm." Therefore, opening keyholes without destroying them requires deep knowledge and expertise, and the utmost concentration.

Trivia

 * Some people like to stick this device in their butts for fun. Several people die yearly from it.