Our Little Wonders spill cup is a patented design with an easy to remove & clean valve, meaning there are no potential bacteria traps. The non spill cup is designed to ensure an easy liquid flow when your child is drinking, with the silicone valve reducing the amount of leaks & spills, even if the cup is tipped over. * Suitable from 4+ months * Patented Design * Easy to remove & clen valve * No potential bacteria traps * Specially designed silicone valve reduces leaks & spills * Designed to ensure easy liquid flow when your child is drinking