Medela Hands-Free Collection Cups.Medelas Hands-free Collection Cups, are our first wearable pump set. Using research-based design, our Collection Cups feature an anatomical shape for ultimate comfort and fit discreetly inside your bra without weighing you down for easy portability. Our Collection Cups were designed to keep you hands-free for all your multi-tasking needs. With only three parts, they are also easy to clean, leaving you more precious time for all the other things in your busy life. These Collection Cups are lightweight and include just three parts to clean for convenient pumping and time savings. With Medelas Hands-free Collection Cups you now have one pump, two ways of pumping with just one breast pump. This ensures you have the flexibility to multitask, pump hands-free and choose how youd prefer to pump without compromising performance or function.Includes: 2 - Collection cups.2 - 24mm breast shields with 2 O-rings already applied on the shield.2 - 21mm breast shields without O-rings applied.2 - Membranes.2 - Extension tubing.1 - Instructions for use.