Right click on image tile and save to your hard drive.

 

Rgiht click on border and save to your hard drive.
Border will match at the ends.

 

This is a tube shown at 70% normal size.
It has a transparent background and ends will match if put
end to end.
Click on image to download zipped tube.

This tube is shown at 90% actual size.
Click on image to download zipped tube.

4 tubes.
Click on image to download the 4 zipped tubes in one file.