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 Flange Sizing Kit, 8 Inserts 15–21mm
5.0 out of 5 · 8 ratings
The same soft inserts without the smallest size: two each of 15, 17, 19 and 21mm.
$14.99 price today — set by the store, may change
- Inserts: 8 (2 × 15/17/19/21mm)
- Fits: Most 24mm shields
- Material: Food-grade silicone
Why it lives in the nook
Most mothers we hear from land somewhere between 15 and 21mm, so this version leaves the 13mm pair out and keeps the four sizes that get used the most. It is the kit to choose if a lactation consultant has already told you roughly where you sit.
- Four middle sizes Two inserts each of 15, 17, 19 and 21mm — the range most measurements fall into.
- Slides into 24mm shields Press the insert into the tunnel of a standard 24mm shield; no new pump parts needed.
- Gentle silicone Food-grade, BPA-free silicone that flexes with you instead of pinching.
- Ruler, guide and brush A nipple ruler and IBCLC-written guide to measure with, a sponge brush to clean; dishwasher safe.
Often kept beside it
IBCLC-Developed Flange Sizing Kit, 10 or 13 Pack
4.6 (420)
Our newest kit, with a precision ruler and a guide for tracking size changes over the months.
2 packs
from $9.99
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 — Flange Sizing Kit, 8 Inserts 15–21mm