3cc slip tip oring syringe. Oring syringes are the perfect solution for hand feeding animals. Because of the unique oring plunger, the syringe works perfect when hand feeding and being able to use the same syringe repeatedly without sticking after a few uses. In most cases with proper cleaning these syringes will work for days and sometimes weeks. This slip tip syringe will hold a catac ST1 nipple, the silicone nipple and a cannula tip. Note: Always use caution when feeding animals with a nipple and syringe that the animal does not ingest the nipple. This could result in death.