What are the four configurations the Graco 4Ever DLX can be used in?

The Graco 4Ever DLX 4-in-1 car seat can be used in four configurations: rear-facing harness (4-40 lb), forward-facing harness (22-65 lb), highback booster (40-100 lb), and backless booster (40-120 lb). This versatility provides up to ten years of use in one unit. Always follow the weight and height limits for each configuration as outlined in the manual. (Page 7)