NOTE: Side fins are called out by Left/Right when looking at the DECK; not the bottom; please see images in photos to help you select correct fin. Thank you!Individual direct replacement fins for your thruster- or quad-finned Odysea Surfboard with our Hi-Perf Fin System.Left/Right Fin is for front of Thruster or Quad.Center Fin is for Thruster only.Quad Trailer Fin is for rear of Quad.Each kit contains one (1) fin, Catch Surf fin key and a Catch Surf sticker.Made of fiber-filled plastic for perfect mix of stiffness, flex and response. Catch Surf logos debossed on sides in natural color. Only compatible with Catch Surf's Hi-Perf Fin System.