This is a set of Joie travel system compatible i-base and GEMM isofix. There are no manuals. It is possible to directly attach the GEMM, removed from the i-base, to a travel system compatible stroller. The GEMM can also be used as a child seat using the seat belt alone. I am also selling a compatible stroller separately. There is a feeling of use and some dirt, but there are no problems with using it. My baby has outgrown it, so I am selling it. Set contents: Joie Baby Seat Gem Ember ¥8308 i-base ¥14790 Purchased new in 2022.