Based on this product's specifications, here are some alternatives and similar models
Lunchbox step by step Wild Cat, black — compact school lunch container
Summary description:
Step by step Wild Cat lunchbox is a compact school lunch container in black designed to store sandwiches, snacks and fruits for children. The lightweight, durable box offers secure closure and easy cleaning. Suitable for daily use at school, kindergarten or outings; fits into backpacks and pairs well with matching bottles or lunch bags.