I recently bought a Bullet master casting machine on an auction. It came with two sets of molds and this set is surplus to my needs. Some of the mold are not in the greatest shape so take a good look at the pictures. They had light surface rust on the top and sides when I got them. I soaked them in rust remover, clean them with a toothbrush, oiled them and reassembled them. They are coated in something that the manual likened to Teflon. Asking $200 for the set plus shipping.