Shipping: Actual shipping takes only 5-7 days to arrive. Please ignore Amazon's estimated delivery date. Size: 12.6" * 12.6" * 3.1" (32 * 32 * 8cm). This booster cushion is designed for children over 2 years old who can sit at a table unaided. Lightweight and portable: The baby chair cushion is designed for the time between a high chair and a regular chair; this simple booster cushion attaches to virtually any chair. It's lightweight, weighing only 310g. Removable and washable: The durable cover is removable and machine washable. High-density sponge (cannot be cleaned as the cushion surface material is not leather), comfortable to sit on. This booster cushion is designed with a beautiful pattern and includes anti-slip particles, making it much safer. Practical and safe: This child's chair booster cushion features 2 extra-strong adjustable straps; it can be easily and securely fastened under the chair and won't slip or slide. Super comfortable booster cushion: This child's chair booster cushion provides an extra 8cm of height, perfect for independent toddlers who are a little too short to reach the table.