Simply Place The Pump On Your Breast, Squeeze The Base Once To Create Gentle Suction, And Collect Leaking Milk While Pumping Or Breastfeeding, Hands-Free! The 100% Silicone Material Is Soft Against Your Skin, While The Easy-Pour Design Makes It Easy To Transfer Breast Milk Into The Bottle And Seal It With The Secure Storage/Travel Cap Without Losing A Drop.