4X/4-/4+ for competition,racing,training. FISA standard. FEATURES and FITTINGSRigging- Aluminum Euro style riggers with backstays, anodized. Fitted out with quality nylon oarlocks, height & angle adjustable. Wing rigger is optional.Seats- Carbon seats for Elite A, B boats, Kevlar seats for Racer, Club A, Club B boats. All seats are with solid axles and ball-bearing wheels for smooth operation. ...