This syringe will hold a Canula tip, Silicone Mothering Nipple,  St1 Catac Nipple, and a needle.  Our Stainless Feeding Needles and our clear Feeding Tubes. The 3.5 fr., 5 fr,  Red Rubber Catheters will also fit this syringe. Please always use caution when using the above nipples that the animal does not swallow the nipple.