Various sizes of Titanium Capillary tube are available upon request. 0.8mmO/ D x 0.4mmI/ D 1mmO/ D x 0.6mmI/ D 1.5mmO/ D x 0.9mmI/ D 2mmO/ D x 1.5mmI/ D 2.4mmO/ D x 1.8mmI/ D 3mmO/ D x 1.5mmI/ D 3mmO/ Dx 2.3mmI/ D 3.4mmO/ D x 2.4mmI/ D 4mmO/ D x 3mmI/ D 4.5mmO/ D x 3.6mmI/ D 5mmO/ D x 4mmI/ D 6mmO/ D x 5mmI/ D 7mmO/ D x 5.5mmI/ D 8mmO/ D x 6mmI/ D