Our B4 toner kit for the Oce 9300, 9400, 9400II wide format printers is a cost effective toner kit replacement for Oce B4, 25001878. The B4 toner kit includes 2 bottles each containing 454 grams (0.454 kg) of toner. That's a total of 908 grams (0.908 kg) per kit! You will also receive 2 waste bags (containers). Manufactured in the USA, using exacting specifications, you can have complete confidence in our B4 toner kits.