Aleshanee carries the Red Rubber Latex Feeding tube Fr8, which is softer than the PVC feeding tubes and is gentler on the puppy's throat with far less risk of puncturing the esophagus than PVC tubes
I personally used these this year for a tiny struggling to nurse puppy with great success.They are easy to use and the puppy swallowed easily making the tube feeding much more enjoyable for both of us.
Please see YouTube if you are unfamiliar with tube feeding or consult your Veterinarian
If you are tube feeding more than one puppy it is recommended that you do not use the same feeding tube for each puppy.
Always err on the side of caution and make sure you measure every few days as they grow rapidly.
It is a small price to pay to save a puppy.
U.S. and International Orders here