The Diono car seat and booster seat 2-pack bundle keeps your child safe from infancy through the booster seat years. The flagship Diono Radian 3R slim convertible car seat securely transports infants from 5 lbs rear-facing and transitions to forward-facing, then to a belt-positioning booster up to 120 lbs, spanning 10 years in one seat. Its reinforced steel frame and automotive-grade construction shield children. Dual integrated cupholders and memory foam cushions ensure comfort, while the slim design fits 3 across most vehicles. The accompanying set of two Diono Solana backless boosters features contoured fabrics and dual cup holders to comfortably position 40-120 lb kids. As a lightweight and portable booster, it stows away easily when not in use. Together this bundle covers every phase - from infant to big kid - with convenient features like machine-washable fabrics and fold-flat portability for carpooling, travel and storage. With safety and longevity built into both seats' slim frames, this versatile Diono bundle simplifies safe family transport for a decade.