Richard, thank you for advice, unfortunately, I am far from B&Q shops.
I managed to make this: took fishing-line (dia. about 1 mm) and wound it in spool.
timur, May 2009
Go to B&Q and buy a BD720 spool and line (barcode 3470787) and just clip it on.
Or call ALM Manufacturing 01423 797208 for stockists