These Nuby replacement nets are intended for use with the Nuby Nibbler – a great way to introduce soft solids when your child is ready. The Nuby Nibbler allows your child to eat whole foods without the risk of choking. Suggested whole foods (age appropriate) include: frozen fruits, fresh fruits, ice chips, veggies, and other similar foods. It is recommended the nets are replaced as a safety precaution when they get worn or torn as it could pose as a choking hazard. These nets should NOT be used without the full Nibbler assembly. BPA Free.