The Polisport Baby Seat Holder is a versatile accessory designed to allow you to use the same baby seat on multiple bicycles. It is compatible with a range of Polisport baby seats, including the Bubbly Maxi, Guppy Maxi, Bilby, Wallaroo, and Boodie, providing the convenience of switching between bikes without the need for multiple seats. However, it is not compatible with front-mounted seats. This additional holder offers flexibility and ease, making it perfect for families with multiple bikes.