You can take tray on and off easily, allow babies to sit and eat at the table. the tray is BAP free and is dishwasher safe. Make clean become a easy thing. Portable toddler booster seat is suitable for most right angle seats. To fix the seat, do not use a seat with a pillar backrest. To avoid the seat belt slipping off the chair, do not use a ladder-back seat with a narrow top and a wide bottom.