'''蟹壳戒指''' is a [[戒指]] that can be obtained as a reward from [[ 吉尔]] at the [[冒险家公会]] after completing the Monster Eradication Goal of killing 60 [[Rock Crab|Rock Crabs]]. Killing [[Lava Crab|Lava Crabs]] and [[Iridium Crab|Iridium Crabs]] are also counted towards the total of 60 kills. After that, it can be purchased from Marlon for {{price|15000}}.