This product, by Baby Dreamland, consists of breast pump flange inserts and adapters made from food-grade silicone. These accessories are designed to be compatible with various breast pumps, enhancing comfort and efficiency during pumping. The silicone material is BPA-free, ensuring the safety of the expressed breast milk. The inserts help to optimize flange fit, potentially improving milk output and reducing discomfort. They serve as adapters for aligning different pump sizes.