Training Stones are items within Laurum Online that allow players to train specific stats for their character (see [Wiki] Stat Training). Each stone can be equipped and unequipped to the character the same way armor and skins can be.
There are multiple training stones available, and they each can train a different character stat when equipped.
The training stones are randomly dropped from monsters or buyed through the Broker NPC.
Where are the stones dropped?
In mobs lvl 90-95 (Death Watch and Observer): 1%
In mobs lvl 100+ (Ice mobs +): 2%