Replacement parts for window blind. The original parts in the blind became brittle with age and fell apart. The carrier and roller control the cords that open and close the blinds. On my blinds these have a small metal ferrule which slides into the slot in the roller (moderately tight fit). Before disassembling the old parts, carefully note (take photos) where all the cords and other parts go so you can reassemble correctly. I did not need to print the gear mechanism or the clear plastic covers for the roller mechanisms as these were still ok. Remember to refit the clear plastic covers as they keep the cords on the rollers. I have included some photos to show how to assemble. These should fit the blinds commonly found in Australia. Hope someone finds this useful.