Manual Breast PumpManual Breast Pump Manual Breast Pump, The Lansinoh Manual Breast Pump is made from 100% polypropylene, the preferred plastic for breastmilk storage. The unique ComfortSeal cushion creates a secure seal for more comfortable and efficient pumping. The ergonomic handle and lightweight, compact design allow for easy one handed use and discreet portability. The pump is easy to assemble, easy to use and easy to clean (dishwasher safe). Comfortable: Unique