Huub have improved the original huub toy buoy to give you more variance in usage through shaping buoyancy and size they now call it the huub toy buoy 4 4 because we have 4 positions of use you can now alter between drag loads by utilising hydrodynamic shaping and you can choose buoyancy focus between the legs with two differing size end curves 1 more buoyancy under legs high drag large end down flat side into crotch 2 more buoyancy under legs less drag large end down rounded side int