- Brand: FCS II - Model Name: PERFORMER - Color: Blue - Type: Neo Glass - Quantity: Quad 4-piece set - Size: Medium This is a used item, so it is non-returnable, non-refundable, and non-exchangeable (3N). Please refrain from purchasing if you have any concerns. Type... Fins Fin System/Fin Box... FCS2 Number of Fins... Quad Fins