These filters are great companion of , which can help your baby feel much more comfortable by mucus from the nose. These filters themselves are safe to use, while preventing mucus from transferring. With such a large quantity, you will get enough replacement. Features -Color:Sky-blue -Material:PU sponge - Size: 2.30X0.80X0.80cm/0.90X0.31X0.31in - Efficient nose cleaning: The filters help with efficient cleaning of the nose of infants and young children, removing mucus and other dirt. - Proper fit: The filter replacements are carefully made to fit properly with the device, ensuring that they work effectively. - Easy to use: The filters are easy to use, with simple installation and removal. They can be quickly and easily replaced as needed, convenient to use. - Safe and reliable: The sponge materials used in these filters are safe and reliable for use with infants and babies, having no impact on them. - Amply supply: The filters come in a pack with ample supply, ensuring that parents and caregivers have enough replacements on hand to use as needed. Package list: 400 x filters