PetAg Nursing Kit for Dogs Contains a 4 oz nursing bottle that is made out ofdurable plastic made to withstand repeated use and sterilization. The nipples included come with no holes for custom control flow of formula. Graduated bottles aid in accurate feeding. Included: Bottle with nipple. Two extra nipples. Cleaning brush. This nursing kit was designed by vets with natural feeding action. Size: 10 L x 7 W x 1.8 H.