Nishimatsuya Mums Carry MC Bright Denim Plus Used from newborn to over 1 year old. No instruction manual. The seat attachment method is written on the side of the child seat. The child disliked it and removed it, so the crotch cushion for the belt is missing. Also, the child started playing with the sunshade by reaching out and fiddling with it, so the wire is broken and removed. There is no wire, but I will ship it as an accessory. (Item in image 8) I have removed and washed the seat and cushion several times, so I think there is a feeling of use. (Images 9 and 10, etc.)