Usage period is approximately one and a half years, with a frequency of about 4-5 times a month. Brand: Aprica Installation Type: ISOFIX Material: Polypropylene Orientation: Forward-facing Product Dimensions: 51.5 depth x 44 width x 65 height cm [Long Use] Child & junior seat usable from around 1 year old to around 10 years old. ISOFIX installation. [R129 Compliant] Compliant with safety regulation R129. Protects your child from impact with side shields and marshmallow G-catch. [Comfortable Seat] Quick-drying mesh seat. Moving seat that moves the seat forward when reclining. [Fit according to physique] The height and width of the headrest can be adjusted with a lever. Can be used for a long time as your child grows. [Usage Period] (Child seat mode) Height 76cm and 15 months or older ~ 105cm *Cannot be used for children weighing over 19.5kg in child seat mode / (Junior seat mode) Height 100cm ~ 135cm [Product Size] W44.0-50.5(*) x D51.5-57.0 x H 65.0-77.5cm *Side shields closed