This is a child seat/junior seat suitable for children aged 1 to 11 years old. I used it for about 2 years. The covers have been washed. I disassembled and reassembled it once, but please check it during use. The sponge on the seat part is torn. (See image 6) For more details, please refer to the instruction manual: https://www.combi.co.jp/cms/combi/images/soudan/after/manual_cp/childseat/pdf/CS_jyoitorip_gc-147926000.pdf