Airhead® Wakeboard Tower Flag Holder.
One-size-fits-all Flag Holder is designed to fit perfectly on all OEM and aftermarket wakeboard towers, so it can be clearly seen by other boaters. Made from billet aluminum, with a polished, anodized finish. Stainless steel hardware, polymer collars, and adhesive-backed pads for quick and easy installation on all wakeboard towers. Fits all towers 1 5/ 8 " to 2 7/ 8 " in diameter, no drilling required.