The POLBAN ADVANCE hip seat is a convenient item that can be used in 3 ways and is suitable for babies aged 7-36 months. - Brand: POLBAN - Model Name: ADVANCE - Type: Hip Seat - Target Age: 7-36 months - Usage: 3-WAY Thank you for viewing. I ordered this from Akachan Honpo in the fall of 2024, but I received a used hip seat from a friend, so this is a new, unused item that has not been opened from the box. Thank you.