The LIQUID FORCE Wakesurf Edge Curvature Rings are designed to work with the Wakesurf Edge Wake Shaper surf device when there is not 4 1/2" of smooth, flat surface to attach to. If there is a lip/step above the attachment area on your hull that protrudes more than 3/8", then you will need 6 1/2" of smooth flat surface instead of 4 1/2".
The suction cups can handle 1/4" of curvature over a 5" distance. If the attachment area on your hull has more curvature than that, then you will need the Wakesurf Edge Curvature Adapter Rings and install them onto your Wakesurf Edge Shaper for the perfect, clean, consistent wave!
The West Advisor articles have answered boaters' questions and provided solutions to boating problems for more than 20 years. West Marine has compiled one of the Web's most comprehensive collections of technical boating information articles.