The question is not if it is available, but can you afford it
The bigger stuff is 34mm dia and I have 5 feet approx.
The smaller stuff I have 8 pieces plus the one in the photo. The pieces have been turned and there are ridges from rough turning, I don't know what they were originally for. Four of them are approx 76mm long by 16-18mm dia. the other 4 are between 80mm and 83mm long by 16mm-18mm and are also rough turned with ridges.
What kit do you want them for?
Peter