The Diono Radian 3RXT SafePlus 4-in-1 convertible car seat and Diono Grip It car seat protector make an ideal bundle for safely transporting your child from birth through the booster seat years while protecting your vehicle's upholstery. The Radian 3RXT SafePlus seat features upgraded SafePlus engineering with an anti-rebound panel and advanced side impact protection to provide complete protection for children 4-120 lbs. It has a steel frame and adjusts to fit your growing child in rear-facing, forward-facing, and booster modes. The seat is made to fit 3 across in most midsize vehicles. The Grip It protector has a durable, waterproof cover that prevents car seats from slipping on the seat fabric for added safety and security. Its full cushioned seat design shields against scratches and dirt. It is compatible with LATCH and crash tested for durability. Together these Diono products provide a complete child passenger safety system to protect your child and your vehicle as your family grows.