Authentic medela replacement parts: this 2-pack of hands-free collection cups o-rings is an authentic spare part made by medela and designed to work with the hands-free collection cups that are sold separately from a breast pump. These o-rings are not compatible with the cups included with the freestyle hands-free breast pump.

Features

• Compatibility: works only with the medela hands-free collection cups
• Replace regularly: medela recommends replacing your o-rings every 3-6 months, depending on your pumping frequency
• Made without bpa: hands-free collection cups o-rings are made of 100% food grade silicone

What's included: each pack includes two (2) hands-free collection cups silicone o-rings