[An Essential Aid for New Mothers] New moms can be overwhelmed when choosing the perfect breast pump flange or shield. Our soft silicone nipple measuring tool perfectly solves this problem, helping you quickly determine the appropriate flange size. [Find the Right Fit] This nipple ruler helps new mothers find a comfortable breast pump flange or shield size, avoiding discomfort during pumping. New moms can truly enjoy the breastfeeding process and help their baby grow up healthy. [How to Use] Align the hole on our silicone gauge with your nipple, choosing a hole that fits comfortably without forcing. It is recommended to measure and adjust flange dimensions regularly. [Safe Material] Our gauge is made of food-grade silicone material, soft and gentle, with no irritating odor, no burrs, and will not scratch the skin. Durable and easy to clean. [Package Includes] 4-Pack Soft Silicone Nipple Measuring Tools (Purple) with an extra 152cm flange measuring tape. Color: Purple Material: Silica Gel Size: 18x10cm Package Contents: 4 * Gauges 4 * Flange Measuring Tapes Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3 cm.