TOYANDONA Silicone Breast Pump Stopper Manual Breast Pump Silicone Flower Stopper Breastfeeding Breastmilk Saver Blue

Amazon.com Price: $7.19 (as of 09/30/2022 19:50 PST- Details)

You do not need to afraid that the breast milk will leak from the bottle.
Strong sealing, no way to leak.
Small and delicate, the suction is large.