When receiving the 20.09 Roman Headrail Kits the spool cord will be situated in the tubing. The cords are in small bags with 3.5m of cord in each. The end of the cord is sticking out of the bag ready to double knot at the end of the cord. Then slide cord knot into the grove on the spool,pull tight, then take the cord across the spool and through the hook from the the bottom. Discard the bag and repeat with the other spools. Attaching the cord to the spools takes about 20 seconds each. When you have the fabric fitted to the headrail it is very important to make sure the cords are still located in the correct position and all cords are coming off the spools equally.
