Emilio sells new old stock Super Iridiums (blue, white and red packaging) and Polsilvers (brown and gold packaging), together with the replacement version which is called the Polsilver Super Iridiums (similar packaging to the NOS Super Iridiums). I've used the two old types, and love them, though I found they suit different razors (Polsilvers are superb as a luxury alternative to Feathers in my Slim, Super Iridiums are great in my FT Rocket), but have yet to try the freebie Polsilver Super Iridium he sent me along with my order.