Feature:1. Optional pair of accessory: diaphragm, duckbill valve, 22/ 26mm little breast Cover, 24/ 28mm breast Cover, 8oz cup, connector.2. Made of food-grade silicone material, safe and odor-free.3. They can be conveniently cleaned and disinfected in boiled water.4. Perfect accessories to prolong the service life of your breast pump.5. Simple to assemble and replace, makes pumping easier than ever.Specification:Features:Optional pair of accessory: diaphragm, duckbill valve, 22/ 26mm little breast Cover, 24/ 28mm breast Cover, 8oz cup, connector.Made of food-grade silicone material, safe and odor-free.They can be conveniently cleaned and disinfected in boiled water.Perfect accessories to prolong the service life of your breast pump.Simple to assemble and replace, makes pumping easier than ever.Specifications:Material: SiliconeQuantity: 2 Pcs (a Pair)Type: Diaphragm/ Duckbill Valve/ 22mm Little Breast Cover/ 26mm Little Breast Cover/ 24mm Breast Cover/ 28mm Breast Cover 8oz Cup/ Connector (Optional)Package Size:Diaphragm/ Duckbill Valve/ Little Breast Cover 12.2 * 12.0 * 5.0cm / 4.8 * 4.7 * 2.0inBreast Cover/ Cup: 22.0 * 22.0 * 7.0cm / 8.7 * 8.7 * 2.8inConnector: 16.5 * 16.0 * 5.0cm / 6.5 * 6.3 * 2.0inPackage Weight:Diaphragm: 22g / 0.8ozDuckbill Valve: 12g / 0.4oz22mm/ 26mm Little Breast Cover: 12g / 0.4oz, 10g / 0.4oz24mm/ 28mm Breast Cover: 110g / 3.9oz, 115g / 4.1ozCup: 95g / 3.4ozConnector: 70g / 2.5ozPackage List:1 * Pair of Accessory (2 Pcs)Package List:1 * Pair of Accessory (2 Pcs)