Larry got them from Rick Olsen, but I might not keep them in the foam cut outs for to long because the foam could stick to the dice if left to long.I like the container though so will probably cut some squares in cardboard and put them in the containers.Rick has the best dice available and a book on prices too.He goes to the Las Vegas Chip Convention in June as well. www.vintagedice.com. or vintagedice@hotmail.com.