EASY grip stem for ease of removal and easy to clean. Material : Quality Silicone . Phlalate Free, Latex Free, Dioxin Free, BPA free.Save Money & Care for the environment and make the economical and eco friendly choice. 100% Waterproof. If you are a first time cup user, we recommend that you choose Small unless you have a heavy flow.We only use 100% medical grade silicone to make our feminine menstration cups to handle daily use Our feminine products are flexible and soft so you can comfortably wear wash them throughout the day. Easy to insert and remove the silicone cup menstrual stay in place to collect up to 12 hours of flow Set includes sterilizing menstrual cup holder cleaner provides effortless cleanup for long term use Feminine soft period cup for beginners can be used by teens or post childbirth heavy flow low cervix Large is ideal for experienced users looking for added capacity and for all users who have a heavy flow.