I believe I purchased this about 5 years ago when I bought a child seat. I haven't had a chance to use it, so it's been sitting in the garage. The box is quite dirty, but the main unit's plastic bag hasn't been opened, and it's still sealed, so it's unused. Please check the 5th photo of the box for the compatible child seat types. cybex child seat / car seat SIRONA M series / SOLUTION M series PALLAS M series / JUNO M series I will waterproof the item, wrap it in bubble wrap, and ship it in a recycled cardboard box.