The infant car seat adapter frame allows you to use the B-READY, B-SCENE, B-AGILE, and BOB Motion strollers with infant car seats made by other major manufacturers. This adapter is designed to work with Chicco Key Fit, Chicco Key Fit 30, Graco Snugride 32, Graco Snugride 35, and Peg Perego Primo Viaggio attachment systems.