These replacement nest are intended for use with the Nûby™ Nibbler™- a great way to introduce soft solids when your child is ready. The Nûby™ 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.