4fr is the smallest thickness of tube within this range.
Theses are luer lock fitment – not standard syringes will not fit
Tube feeding is sometimes needed for weak puppies & kittens and is a method recommended by most vets to feed puppies who can’t feed from mum.
We strongly recommend if you are not trained in tube feeding that you must seek advise from your veterinary professional to show you how to tube feed your puppy or kitten, or small animal.
Disclaimer – We cannot be responsible for mis-use of these products.