The syringe with nipple is designed to be easy to use and is often recommended for  difficulty breastfeeding or for animals who are unable to eat or drink on their own. The syringe can be filled with formula, breast milk, medication, or any other liquid and then gently squeezed to release the liquid into the nipple. The nipple can then be placed in the animal's mouth and they can suckle on it to receive the liquid.