Flange Insert 19mm, Compatible with S9/S12/S9Pro/S12Pro Wearable Breast Pump Parts Replace, Pump Shield/Flange Insert to Reduce 24mm Down to 19mm

Very nice quality. Had to return because I read somewhere they are compatible with the Baby Buddha expression cups. The duckbill valves are but the silicone diaphragms are not. I was impressed with how thick the silicone is and the pieces are packaged very nicely

These fit my MomCozy s12 great and lasted a couple months of wear

They fit my mom cozy s12 pumps perfectly!

These fit perfect on my mom cozy s12! The duckbills last quite awhile before having to be changed.

Seem to be good quality and have held up well to washing in the dishwasher.

First of all if you are a stickler for packaging this isn’t for you.. box is taped shut with scotch tape sooo. However, the product itself seems pretty great quality at affordable price point. This was purchased for my mom cosy and the peaces worked well with it. I’ll be keeping and would recommend.

Fits perfect with my mom cozy pumps!

Fit perfectly on my mom cozy pump. Look much sturdier too!