Bullet Points : 1 > The Duckbill Valve Can Be Used To Drain Milk To The Bottom Of The Container 2 > Wash The Breast Pump Accessories With Warm Soapy Water Everytime After Using 3 > Duckbill Valve Accessories Can Perfectly Meet The Accessories You Need When Using Wearable Breast Pump 4 > The Pump Parts Are Made Of Silicone, Durable And For Baby 5 > 8Pcs Hand Pump Parts, Size About: 3.20 X 2.50 X 2.50 Cm/ 1.26 X 0.98 X 0.98 In Description : 8Pcs Breast Pump Valves Duckbill Valve Breast Pump Replacement Valves Milk Collector Accessories Breast Pump Accessories For Electric Pumps 19Mm