60cc catheter 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 catheter tip syringe will work well with our large size feeding tubes.