Hi Em,

You'll probably have to go to a Fasteners type outlet and they'll have quite a range. Here in Adelaide we have a store called "United Fasteners".
There's an outlet of theirs in Brisbane.

http://www.unitedfasteners.com.au/

You might have to trim one down to size though.

BTW. Thanks for those documented dimensions of the rollers.

Any money by having the tube cut down into 2m lengths that there will will be some unwarranted wastage.


Cheers,
BB.

I live a 24 Hour lifestyle, but every now and again I seem to fall asleep, well at least that's what my wife tells me.