The Moye Evolution high chair is designed for comfortable and long-lasting use. Don't worry - this chair will take care of your child's back while learning or playing. Features: Seat surface: 440 x 430 mm Back surface: 440 x 430 mm Maximum load: 75 kg Seat height adjustment range: 340~555 mm Seat depth range: 718~790 mm Height adjustment range: 540~760 mm Backrest height range: 735~1015 mm