Hard Skin

Hard Skin  is an item that is required for most headgear quests at Justin.

Source: It can be obtained from Hardrock Mammoth (100.00%).

Market Price:
 * 180 PC (As of Sep 16, 2018)
 * 200-250 PC (May 17, 2018)

Monster Location: man_fild03 (Warper NPC > Fields > Manuk Fields > Manuk Field 3).

Monster Respawn Time: 4 hours after its death

Note: There is no way to know when Hardrock Mammoth will re-spawn unless you know its previous time of death.