Number of Pieces: 50, Includes: Milk Storage Bags, Capacity (volume): 8.000 ounces, Features: Volume markings, Double-zipper seal, Safety and Security Features: BPA-free, Certifications: Meets CPSC Standards, Material: Plastic, Protective Qualities: Leakproof, Dimensions: 5.000 inchesH x 4.250 inchesW x 2.250 inchesD