Inspector's Grindstone

A grindstone containing an inspector's determination. Use to consume the grindstone to polish certain types of untradable special skill rings for a chance to enhance them.

Eligible Items:
Libae's Prototype R Ring
Libae's Prototype C Ring
Libae's Prototype W-S Ring
Libae's Prototype W-D Ring
Libae's Prototype W-I Ring
Libae's Prototype W-L Ring