Each Never Summer snowboard has a unique serial number printed in the topsheet. The serial number depicts which model, size, year, and board number of each snowboard crafted. You can find the serial number on the topsheet, between the bindings, near the edge of the board, on the left hand side. This number is important in keeping track of your new snowboard. Make sure to register your snowboard by the serial number to ensure the three year warranty that comes with the board.