Youha Youcup hand fee Universal Funnel Insert 17mm , 19mm , 21mm

- Introducing a funnel insert

- Help mommy to size down the big funnel so that mommy can pump effectively 

- We have 3 different size to fit different size of funnel 

• 17mm - fit for nipple size 13mm below and can be use with funnel size 24mm until 30mm 
• 19mm - fit for nipple size 15mm below and can be use with funnel size 24mm until 30mm 
• 21mm - fit for nipple size 17mm below and can be use with funnel 27mm until 30mm