【New】CENTER SMALL KEEL FIN Yellow/Blue Keel Fin Retail Price: ¥5,900 Color: Yellow/Blue Line Product Size: Base 10cm, Height 4.6cm ◆ Fin Description MATERIAL: Glass Flex This is a center fin that can be added to TWIN, KEEL, and quad setups. This fin increases drive and controls direction through turns without sacrificing speed, flow, and the free movement often found in quads. If your board has a center fin box, it can be attached to all board types, such as longboards, funboards, shortboards, Simmons, and other alternative boards.