Double functional design: The extended footrest and armrest can converted for use, which not only extends seat for baby to lie down more comfortably, but also provide additional and protections Suitable for multiple vehicle models: specially designed for T18 / T28 and other models, with strong compatibility Enhancing comfort: By increasing leg and hand armrests, reduce the pressure on the baby body from prolonged sitting and care for growth Safe and stable structure:, the connecting component are firm and durability, and stable and not shaking after installation, ensuring the of baby travel installation: It can quickly installed or disassembled without the need for complex tool, making it for daily use, storage, and cleaning