I HAVE HAD A LOT OF DICE ON DISPLAY FOR OVER THIRTY YEARS IN THE OPEN AIR AND NO DAMAGE YET ALSO HAVE DICE THAT GO BACK FIFTY YEARS AND SHOW NO SIGNS OF DETERATION I BELIEVE IT ONLY HAPPENS BECAUSE OF INPROPER STORAGE IN A BAD CLIMATE ROOM JUST LEAVE THEM OUT TO ENJOY HELL IF THEY DETERATE IN THIRTY YEARS OR SO WE WILL NEVER KNOW LET OUR HEIRS DEAL WITH IT