Japan COMBI multi-function will train then ce 
- will equal to train then ce and assist platform in whole body de multi-function young child train then ce. 
- then  Design make enough doesn't need expressly open, convenience young child exert. 
- design much can will then toilet on lid dispart tear open behind put set free in adult toilet. 
- the rest seat stand change body of become a assist step, avoid baby hang the foot. 
- with can take out de bedpan convenience's washing. 
- add comfortable towelling's cushion, can dismantle washing, convenience sanitation.