Stealth Kneeboard and Wakeboard Rack with Rotating Mount
Amazon.com : Amarine Made Heavy Duty Single Kneeboard and Single Wakeboard Combo Tower Rack for Clamped Tube Size: 2",2-1/4", 2-1/2" : Sports & Outdoors
Stealth Wakeboard and Kneeboard Rack with Rotating Mount and Quick-Release Knob