Cardboard tube (Stone Cross BN23)

Hi,

I am after 1 cardboard tube, needing sturdier than toilet roll tube. More after a postage tube or similar. I am trying to make a barbell/dumbbell for dress up for world book day and am in need of a cardboard tube to decorate to use as the bar section.

Ideally not too thick as child will need to hold with one hand

Thanks