Features: Breast Pump Flange Measuring Tool for Nipple – This tool helps measure nipple diameter to find the correct pump flange size for a compatible fit with your breast pump, supporting comfortable breastfeeding. Wide Range of Sizes – The measuring card includes 27 size circles to accommodate various nipple diameters, allowing for accurate measurement even as size changes occur. High-Quality Material – Made from food-grade, wear-resistant plastic, this measuring tool is skin-friendly with precise markings, safe for sensitive skin. Supports Better Milk Flow – Accurate sizing helps ensure proper flange fit, which may support improved breast milk expression and comfort during pumping. Easy to Use – Simply hold the ruler against the edge of the nipple, use a mirror to identify the matching circle, and record the measurement. Ensure a comfortable fit without stretching for accurate results. Specifications: Product Dimensions: As shown in images Material: Plastic Color: Pink/Blue Package Includes: 1 x Nipple Measuring Card for Electric Breast Pump Flange Note: Please allow 1–2 cm variation due to manual measurement. Color may vary slightly due to monitor differences.