Biltwell TS-VIN-00-BT Thinline Seat (With Hand-Stitched Tuck-and-Roll Pattern, for Custom Applications) Stamped steel pan with reinforcement ribs and black electroplated finish Carriage bolts on the bottom of seats slide inside two channels so they can be fine-tuned in their location relative to the bungs on the frame Molded polyurethane foam with hand-stitched vinyl covers available in tuck n' roll, diamond and smooth designs Uncovered seat also available to allow riders to customize to their liking Measure 11.75" L x 9.5" W