Scroll of Party Skill
From FlyFF WIki
Scroll of Party Skill (7-days)
Cost: 425 gPotatoes
Count : 5
Info: Allows Party Skills to be stacked, combining their duration, but not effect. Works when the party leader has it activated. Lasts 7 days from activation. Note that duration expires even when logged off.
Scroll of Party Skill (15-days)
Cost: 175 gPotatoes
Count: 1
Info: Allows Party Skills to be stacked, combining their duration, but not effect. Works when the party leader has it activated. Lasts 15 days from activation. Note that duration expires even when logged off.
Note: not to be confused with Enhanced Party Skill Range 15 day which was a gift in an event and is not purchasable is CS.