3-in-1 Flange Sizing Kit, 10 Silicone Inserts 13–21mm
4.6 (2,269)
Our best-loved kit: two inserts in each of five sizes, a silicone ruler and a sponge brush.
7 colours
$9.99
Nursi Luna IBCLC-Developed Flange Sizing Kit, 10 or 13 Pack
4.6 out of 5 · 420 ratings
Our newest kit, with a precision ruler and a guide for tracking size changes over the months.
$9.99 price today — set by the store, may change
- Sizes: 13/15/17/19/21mm
- Packs: 10 pack, or 13 pack bundle with nipple cream
- Fits: 24mm shields (not 27–28mm)
Why it lives in the nook
Nipple size is not a number you find once. It shifts in the first weeks, between sides and sometimes over a single session. This kit comes with a more precise ruler and a guide written to help you measure again as things change, so the insert you wear in month three still fits.
- Five sizes, 13 to 21mm Enough steps to move up or down as your measurement changes.
- Precision ruler and guide Measure before and after pumping and compare — the guide explains what the difference means for your fit.
- For 24mm shields only Built for 24mm electric and manual shields; it will not sit properly in 27–28mm shields.
- Cushioned liquid silicone A soft layer between you and the shield, smoother than bare plastic.
- Replace every one to two months Silicone stretches with daily use; a fresh set keeps the seal tight.
Often kept beside it
Flange Sizing Kit, 8 Inserts 15–21mm
5.0 (8)
The same soft inserts without the smallest size: two each of 15, 17, 19 and 21mm.
$14.99
Flange Inserts 10 PCS for 24mm Shields, 13–21mm
4.6 (2,267)
The original Nursi Luna insert set that started it all, with ruler and sponge brush.
$9.99
Ready when you are — IBCLC-Developed Flange Sizing Kit, 10 or 13 Pack