Combi Child Seat Circulator ・ Circulator ・ Cigarette lighter plug ・ Instruction manual I have kept this at home without using it. Although it is a new, unused item, I took it out of the box and connected it once to check if it works. It worked without any problems. Please check for yourself if it can be attached to your child seat. The instruction manual for the child seat also includes information about using the circulator, so I will include it. Thank you for looking.