Silicone, BPA-free breast milk bottle case with a double star jar function to collect breast milk without waste. - Brand: medela - Product Name: Silicone Breast Milk Collector - Material: Silicone - BPA Free: Yes - Features: Double star jar function - Design: Transparent container with a yellow cap Purchased from the official website and used once. Sterilized by boiling and stored. Please note that this item has been stored at home, so please consider this before purchasing. If you have any questions, please feel free to comment. Thank you for looking.