Supports the aft end of dinghy mast when towing. Simply fits onto transom fittings and is instantly ready for use. Fully adjustable for different transom heights or pintle spacing (between 4 3/8" and 13 1/8" apart). Distance between top pintle and mast yoke adjustable between 13-1/8" and 14-5/8". The cross strap can hold a trailer lighting board, and the mast yoke has neoprene padding to protect your mast, and two tie-down eyelets.