we have the rectangle hub veterinary hypodermic needles and the large round knurled hub veterinary hypodermic needles for option.

For rectangle hub veterinary hypodermic needles, based on different hub size, there are 11mm, 13mm, 14mm, 16mm, 18mm, 20mm.  the cannula size can be made according to your requirement.

For  large round knurled hub veterinary hypodermic needles, this veterinary hypodermic needles is with 8mm knurled hubs.