DISC

A stand disc is a simple disc designed after the person from whom it was taken or the stand that was taken from the person. They are conjured and manipulated by Enrico Pucci's stand Whitesnake, and can even be manipulated as physical objects, such as being stored in a tire and continuing to exist even after Whitesnake no longer exists. The discs are indestructable unless inserted into a dying person, causing the inserted disc to slowly crumble.

Function
There are two types of discs: memory discs and stand discs (the term used here refers to the disc containing the stand of its original user).
 * Stand Disc:
 * Memory Disc:

This discs can be inserted in any person giving them a stand and even shown by Emporio allowed the person to bypass the one stand rule. Pucci can also give commands to people by inserting discs with information or impossible situation like die and blow up. The discs are physical objects and can be taken, hidden and even exist after White Snake is gone, its possible that Pucci searched the world for many stand user stealing there abilities and inserting them on the prisoners in Stone Ocean yet this remains unknown.