The Maxi-Cosi Play Tray complements Maxi-Cosi Group 1 car seats (available separately)--Axiss, Pearl, Opal, Tobi, Priori XP, PrioriFix and the Priori SPS. The fabric-covered play tray keeps the child occupied on long journeys. It also prevents them from reaching for and pushing the red button to undo the car seat harness. The Maxi-Cosi Play Tray features detachable toy parts that are stuffed and colourful, making them visually appealing to young babies. The toys also make sounds or rattle, encouraging baby to sit up and/or reach for toy.