• Each Willow breast milk storage bags holds 8 oz (240ml), 100 bags per package
• Leak-proof, double-zip seal for durability; Pre-sterilized with a tamper evident, tear-away top; Made without BPA or phthalate
• This milk storage bag has a self-standing base for easy milk transfer; Designed with pour spout for easy milk transfer to a bottle
• Willow milk storage bags can be stored in the refrigerator or freezer, and easily labeled with a marker or ballpoint pen
• Trusted and True: Designed by the best in medical tech, Willow pumps and accessories are made with moms in mind; Join the 300,000 moms who have brought Willow into their homes and lives