The Toddler Booster is designed for children from 12 months old. In addition to straps for securing it to the chair, it features a 3-point harness. When children are 3 years old or weigh more than 15kg, the 3-point harness can be removed. Depending on their size, children can use the Toddler Booster until about 6 years old. Easy to clean and stackable.