This package includes britax b agile 4 stroller britax baby safe plus shr ii car seat birtax clickgo adaptors britax b agile 4 stroller the nippy b agile comes in three and four wheel models and combines light weight with surprising flexibility from pushchair to infant carrier to carrycot from swivel to locked front wheels with a one handed pull fold for an easy transition from pavement to car the choice for families who dont want anything to hold them back features suitable from birth