I found this code on forum what is wrong here? It just keeps attacking with everything I have and kills the mob before it uses item. 

Thread t = new Thread(() =>
{
 uint itemId = 60206;
 int questId = 26720;
 while (robotManager.Products.Products.IsStarted)
 {
  if (Conditions.InGameAndConnectedAndAliveAndProductStartedNotInPause)
  {
   if (!Quest.HasQuest(questId))
    break;
   if (ObjectManager.Target.IsValid && ObjectManager.Target.IsAlive && ObjectManager.Target.HealthPercent <= 25)
   {
    ItemsManager.UseItem(itemId);
   }
  }
  Thread.Sleep(500);
 }
});
t.Start();

need it too, but i dont know how to get it worked. my bot kills the mobs too

Try:

Fight.StopFight();
ItemsManager.UseItem(itemId); 

 

instead of just ItemsManager.UseItem(itemId);

It works, thanks a lot :)