OLD SCHOOL DESIGN USED TO REGISTER YOUR SURFBOARDS IN THE ERA OF THE MALIBU / LONGBOARD. LOOKS GREAT TODAY ON ANY SURFBOARD.GREAT NOSTALGIA RETRO DISPLAY , PROFESSIONALLY PRODUCED FOR ALL SURFACES. MADE FROM WEATHERPROOF VINYL AND DIE CUT TO ACTUAL MEASURES 9.5cm (3.75") IN DIAMETER. SUITABLE FOR SURFBOARDS AND ANY EXTERNAL AND INTERNAL USE.