Description Size: 2 Pattern: Washable Pattern Type: Solid Features: Washable Quantity: 2 Model Number: Breast Milk Collector Shell Material: Silicone Name: THINKTHENDO Age Range: Maternity Type: Nursing Pad Breast shells are made of soft silicone. Simply press it to your breast and you will collect the breast milk effortlessly. The breast shells are designed to be placed in your bra. These nursing shells protect nipples from friction and help with relieving engorgement. Breast milk collector storage. Compared with nursing pads, they help you collect precious breast milk leaks and relieve the discomfort and pressure of unexpressed milk. The design of air vent allows for airflow so the nipples can heal and be ventilated. It's also convenient for transferring milk to bottles. Specifications: Material: Silicone Type A Size: approx 10 x 9.9 cm / 3.93 x 3.89 inches Please allow 1-2 cm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package Includes: 2 x Breast Milk Collector Shells