The Lansinoh Breast Milk Collector or Collector offers a simple way to collect every last drop of breast milk. This silicone ' pump ' collects milk from one breast while you breastfeed or express milk from the other breast. The Lansinoh Silicone Breast Milk Collector Breast Pump offers a simple solution for moms by allowing them to collect breast milk when they are nursing or pumping and the other breast is leaking. Lightweight, portable, and small, it easily fits into a bag or changing table for discreet use. The hands-free system, as it fits securely to the breast creating a natural suction, offers an easy way to collect precious breast milk. With the added security of a neck strap that ensures the collected breast milk is safe. It is suitable for all chest sizes. Ergonomic Design: Fits perfectly on the chest to reproduce natural suction and allows for hands-free use. Includes lid to keep collector clean when not in use. 100 ml capacity: 100% silicone for comfort and easy cleaning. Neck strap: Used as a milk collector or a booster breast pump, it can help express milk from one breast with one hand when the baby is on the other breast. Suction cup base: The suction cup base allows you to collect the precious milk safely without the collector tipping over. It is recommended to place the tape in the collector and put it around the neck to avoid later spillage. Squeeze the center of the silicone breast pump or collector and place it on your breast to form an airtight seal. Breast milk will be collected once let-down begins. When the silicone breast pump is full or has stopped pumping, release by gently squeezing the cup area while holding the base firmly. Pour expressed breast milk into a Lansinoh breast milk storage bag or breast milk storage bottle. Place the cap over the top of the silicone breast pump to prevent contamination. Before using for the first time, place the silicone breast pump or collector in boiling water for 5 minutes, allow to cool, rinse well and air dry. Always wash all components immediately after each use. It can be washed in hot soapy water and rinsed with clean water. Dishwasher safe, top rack only. It can be cleaned in the microwave, in a steam sterilizer bag, and in a special sterilizing machine. Please remove the neck strap before cleaning. Do not clean with solvents or aggressive chemicals. Avoid contact with sharp objects.