3 in 1 multi function backpack3 in 1 a fully functional assembly with shoulders suitable for storage and use of high density plastic seats. About our product A well designed seat with a stable interior can hold a baby weighing more than 50 pounds Including diapers for storage bottles, etc. could fit in the car. Three belt supply design no slip grip raised to chair stability. Neatly folded, can be carried out one or both satisfactory. Don't forget to wash the dishes, dishes and