Specification Brand : Maymom BulletPoint1 : Product Content: 21mm Flange (x2 Small Flange), Backflow Protector(x2), Tube(x2), Duckbill Valve (x2), Bottle with a Two-Piece Travel Cap (x2). All Products compatible with Spectra 9+, Spectra S1, Spectra S2 Breastpump. This kit does NOT include Dome Caps and Nipples. BulletPoint2 : Maymom-made products. Not Original Spectra S1 Accessories. Not Original Spectra S2 Accessories. Not Original Spectra Pump Parts. All pump parts made by Maymom LLC. BulletPoint3 : Maymom pump parts perform as well as OEM parts. Interchangeable and compatible with Spectra pump parts. Ideal Spectra replacement for Spectra Duckbill Valve (Spectra Valve), Spectra Backflow Protector, Spectra flange, Spectra Tubing, Wide-Neck Spectra Bottle. Maymom flange size available: 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm, 24mm, 25mm, 27mm, 28mm, 30mm, 32mm. BulletPoint4 : The two-piece cap of Maymom bottle features rewritable surface top for labeling date or baby's name for daycare or daily storage use. Write with regular ball pen or dry erase marker. Erase with soapy water. BulletPoint5 : US FDA registered medical device (No. D192499), Health Canada License (No.26003), Australian Health and Aged Care (ID 463470). Inspected by US FDA. Comply with FDA/EU regulations for plastic materials that contact food. Test reports are conducted by independent lab and available online for reference. BulletPoint6 : Can be cleaned with boiling water, water steam or microwave-steam bags. Retail packed, sealed by the manufacturer - Maymom, not original Spectra parts. Capacity : 140 milliliters Color : Color Scale Directions : 1.Take the silicone flange insert of the selected size and place it inside the 24mm flange or shield of your pump. 2. Ensure the insert is securely placed and fits snugly into the flange. ExternallyAssignedProductIdentifier : 4713530092686 GpsrSafetyAttestation : 1 IncludedComponents : Tub IncludedComponents1 : 13mm Flange Inserts * 2PCS IncludedComponents2 : 15mm Flange Inserts * 2PCS IncludedComponents3 : 17mm Flange Inserts * 2PCS IncludedComponents4 : 19mm Flange Inserts * 2PCS IncludedComponents5 : 21mm Flange Inserts * 2PCS ItemName : 21mm Flange Maymom Pump Parts Compatible with Spectra S2 S1 9 Plus Breastpump Not Original Spectra S2 S1 Replacement Pump Parts Accessories, Small Flange ItemPackageDimensions_Height : 18.288 centimeters ItemPackageDimensions_Length : 9.398 centimeters ItemPackageDimensions_Width : 16.2052 centimeters ItemTypeKeyword : electric-double-breast-feeding-pumps Manufacturer : Maymom Material : Silicone Material1 : Plastic Material2 : Silicone ModelName : Bewinner7gwg56beyk ModelNumber : S001W-F__ NumberOfItems : 1 PartNumber : S001W-F__ Pattern : F21 ProductDescription : This product is made by Maymom to fit spectra S1/S2 pumps in addition to spectra 9 and spectra M pumps. ProductSiteLaunchDate : 2018-11-06T08:00:00.000Z SafetyWarning : Ensure that these flange inserts are compatible with your breast pump’s 24mm flange. Using an incompatible insert may result in discomfort or inefficient pumping. Size : 10 Piece Set Style : F21 SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 1 UnspscCode : 40151500