Cybex Solution B3 i-Fix Car Seat Safety, ease of use and comfort. With the Solution B4 i-Fix high-back booster car seat you have everything covered. Safety, with Linear Side-impact Protection Plus and strict testing under the latest UN R129/03 standard. Cybex Solution B3 i-Fix Car Seat Safety, ease of use and comfort. With the Solution B3 i-Fix high-back booster car seat you have everything covered. Safety, with Linear Side-impact Protection Plus and strict testing under the latest UN R129/03 standard. Ease of use, the Solution B3 i-Fix car seat has a practical ISOFIX system for simple and secure fixation in your vehicle. And comfort, with a 12-position adjustable headrest for a snug fit for growing children. It also includes a cup holder to keep drinks safely in reach. This high-back booster car seat has all you need to drive with your loved one with peace of mind. Reduces Side-impact Forces Attached to the sides of the car seat, the L.S.P. System Plus increases safety in the event of a side collision. Optimal Protection for Peace of Mind The Solution B4 i-Fix was developed using the latest UN R129/03 safety standard, with rigorous testing for safety you can rely on. Easy Installation Hassle-free installation and extra stability on the road with ISOFIX. Simply click the Solution B4 i-Fix into any vehicle seat with ISOFIX. Grows with the Child As your child grows, adjust the car seat headrest to one of 12 different positions, for the perfect fit for every age up to 12 years. Compatible with: · Solution B i-Line Summer Cover · ISOFIX Guides Specifications: · Age range: From approx. 3 up to 12 years · Child height: 100 cm - 150 cm · Child weight: From approx. 15 to 50 kg · Approval regulation: UN R129/03 Dimensions Length390 mm Width570 mm Height640 mm Weight4.5 kg.