These are my favorite convertible car seats! The Graco slim DLX accommodates kids up to 100 pounds and it’s highly rated and very safe, lightweight and easy to install and comfortable. My twins love them and they are 8.5 years old.I love the fact that it will grow with the child and it’s the only one you will ever need. The Evenflo Revolve 360 is a game changer when getting the babies and toddlers in and out of the car, especially if you have twins or a few toddlers. It’s a rotating car seat. I like the slim if you are tight on space! Baby registry must have. Convertible car seats. Extendable car seat seats. Booster seats. Toddler car seat seats. Best car seat seats. Safest car seat seats. Slim car seat seats. Lightweight car seats. Cupholders. Rotating car seats. Baby gear. Baby must haves. Baby essentials. toddler activities. Traveling with baby. Traveling with toddler.