Introducing the luxury 3 across All-in-One Car Seat for first class travel from birth to booster suitable from 4 - 120 lb / 1.8 - 54 kg. Diono Radian® 3QXT+ features Safe+® engineering, exclusive premium fashion and Safe+® 2-in-1 anti-rebound panel and adjustable calf support for the very best in safety, comfort and style. Features: -LUXURY TRAVEL FROM BIRTH TO BOOSTER - From rear-facing to forward facing Radian® 3QXT+ adapts as your child grows for 10 years of first-class travel from birth to booster. Suitable from 4 – 120 lb. -SAFE+® 2-IN-1 ANTI-REBOUND PANEL AND ADJUSTABLE CALF SUPPORT - 1. Anti-rebound panel increases stability when rear-facing and reduces rebound rotation by up to 50%. 2. Adjustable calf support and comfort liner provides additional comfort as they transition to forward-facing. -SAFE+® ENGINEERING - Features a unique combination of engineering features and testing to the highest safety standards to ensure the safest seat possible. -EXCLUSIVE PREMIUM FASHION - Designed with mesh panels and premium fabrics. Easy remove and machine washable for comfort, convenience and style All-in-One. -SLIM FIT 3 ACROSS - Ultimate passenger comfort with spacious design but only 17” wide to fit 3 across in most midsize vehicles. -Includes 2 x XL Cup holders & Car Seat Protector Product Height: 28.5 in / 72.4 cm Product Width: 17 in / 43.2 cm Product Depth: 16 in / 40.6 cm Product Height - folded: 28.5 in / 72.4 cm Product Width - folded: 17 in / 43.2 cm Product Depth - folded: 11.5 in / 29.2 cm Seat Weight: 34.2 lb / 15.5 kg Minimum User Weight: 4 lb / 1.8 kg Maximum User Weight: 120 lb / 54 kg Minimum User Weight - Rear Facing: 4 lb / 1.8 kg Maximum User Weight - Rear Facing: 50 lb / 22.7 kg Minimum User Weight - Forward Facing: 22 lb / 10 kg Maximum User Weight - Forward Facing: 65 lb / 29.5 kg Minimum User Weight - Booster: 40 lb / 18 kg Maximum User Weight - Booster: 120 lb / 54 kg Maximum User Height: 57.1 in / 145 cm Minimum User Age: 0 month Maximum User Age: 120 months