This set of flange inserts is a must-have for any Momcozy S12 Pro, S9 Pro, S12, S9, or Me breast pump users. Made of high-quality, BPA-free silicone material, these inserts are safe to use for you and your baby. Each set includes five different sizes of flanges, with one piece per size, to ensure a perfect fit for every user. The package includes breast flanges only, no other components are included. The flanges' dimensions are 13/15/17/19/21mm, and each piece weighs only 2.08 ounces. This product is made in China and is compatible with a wide range of tools and machines in the CNC, metalworking, and manufacturing industries.
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