21mm Silicone Insert Breast Shield for 24 mm Shields 2 Pieces Flange Inserts 21 mm for 24mm Collection Cup Wearable Breast Pump Accessories Replacement Parts (21mm Flange)

Key features

• Compatible Models - 21mm silicone insert breast shield compatibles with 24mm silicone breast shield. Please note: Cannot be used with B09CKZYDQ8, B09CGZPQHP!
• Package Including - Includes 2 pieces 21mm silicone insert breast shield, which made with food grade silicone, BPA free.
• Regular Replacement - The silicone insert breast shields are recommended to be replaced every 1 to 2 months. Deformed parts can cause sucking failure or fluid leakage.
• Clean after Use - The silicone insert breast shields need to be cleaned after each use. It can be cleaned after 5 minutes of boiling.
• Assembled Correctly - Incorrect assembly of parts can also lead to no suction or leakage. Please assemble the accessories correctly. Note: This product is only suitable for new wearable breast pumps, not for traditional breast pumps. If you are not sure whether you can use it, you can contact us.