Purchased about 4 years ago. Used for about 2 months. This is a booster seat (seat cushion) that fits perfectly even for babies at a young age because the seat is high. Target age/around 10 months and up It has a fixing belt, so it can be securely fixed to your home chair. The usable length of the belt is 60-96cm. The cushion is removable, so you can adjust the height of the seat in 4 stages according to your child's growth (5, 8, 11, 14cm).