What are the inorganic objects in Kawaki's body?

[Yahcob13]

What are they and how do they benefit Ishiki?

 

[Yahcob13]

Ill bet that its those black cubes Ishiki uses. I dont understand the purpose of them but they seem powerful.

 

[Sarada got pantsed]

No. They are nano-technology scientific ninja tools that allow Kawaki to control his body/cells in a way that lets him shapeshift his body parts into various shapes. As for how they benefit Isshiki, they don't really directly benefit him.