Wildkin's Nested Snack Containers are designed with both kids and parents in mind. With a Nested Design, parents will love the space-saving storage, and kids will be delighted the Wildkin designs! BPA-free plastic makes Wildkin's Nested Snack Containers super durable and kid friendly. 3 piece set Nesting design for space-saving storage BPA free Durable and lightweight Compatible with Wildkin's Lunch Box, Lunch Bag, Eco Lunch Bag, Clip-In and Two Compartment (top or bottom compartment) Lunch Bags Coordinates with other Wildkin gear Dishwaser safe top rack. Hand washing lid is recommended. Freezer safe. Remove lid for microwave.