PandaEar Nipple Ruler – Flange Size Measurement Tool for Breast Pumps

Take the guesswork out of flange sizing

The PandaEar Nipple Ruler is a compact sizing tool designed for busy moms who pump. Instead of guessing, you can compare your measurements to precise cutouts on a durable card. The measurement range from 10 mm to 30 mm covers common flange sizes and helps you identify a fit that feels comfortable during sessions. Pair it with the included soft measuring tape for an even fuller sizing picture.

What makes it fit your pumping routine

Based on real world use, you may notice smoother flange fit, less friction, and more consistent pumping times when the right size is found. The right flange size is a frequently cited factor in comfort and pumping reliability, and this tool helps you explore options without pressure.

• Accurate sizing from 10–30mm via precise cutouts, ideal for nipple-fit testing before purchasing flanges
• May contribute to improved comfort and potentially better milk flow when the flange matches your profile
• Quick and easy to use just insert the nipple into the circular holes
• Bonus soft measuring tape adds flexibility for cross-checking measurements
• Portable and reusable BPA-free plastic that travels in a pump bag
• Helpful for flange inserts and pump fittings to confirm compatibility

Specs and materials you can rely on

Built for real life use, this lightweight card is designed to withstand regular re-use and travel. The BPA-free, durable plastic keeps things simple and clean between sessions. The included measuring tape supports broader sizing checks, so you can compare with inserts or cushions as needed.

• Durable measurement card with cutouts from 10mm to 30mm
• Includes soft measuring tape for additional sizing context
• Compact, portable design that fits inside your pump bag
• Reusable and BPA-free for repeated use
• Ideal for evaluating flange inserts or pump fittings