This is a single user product. Use by more than one person may present a health risk and voids product warranty. Breastpumps and personal care items. For hygienic reasons they cannot be returned once opened. If you experience discomfort while pumping, contact a breastfeeding specialist. You may need a larger size PersonalFit™ or SoftFit™ breastshield to reduce the possibility of nipple irritation or injury.