- Brand: Mercedes-Benz - Model: DUOplus isofix - Color: Gray/Black - Type: Child seat - Features: 5-point seat belt - Material: Fabric Compatible with ISOFIX*1 and tether anchor function*2. - Suitable weight: 9-18kg - For infants (9 months to approximately 4 years old) - Weight: Approximately 9.5kg ISOFIX: A child safety seat fixing method based on the ISO (International Organization for Standardization) standard. This function uses tether belts to secure the child safety seat to the vehicle's tether anchors, preventing the child safety seat from moving forward in the event of a collision. This is a genuine child seat. It is being sold because my child has outgrown it. There are some minor stains on the belt area and the sides of the seat, but it should not affect its use. Please consider this item as a used product. All accessories are as shown in the photos.