[2 in 1 Function] It can be a fitness frame or a toddler car, suitable for babies at different stages from 0-12 months and above to play lying down, sitting, lying on their backs, kicking and also learning to walk. The unique musical piano keys make wonderful sounds, and the multifunctional panel on the back attracts babies to touch and stimulates their curiosity. [Designed for babies] Piano with 4 illuminated music keys has built-in soft LED lights to promote baby's vision discrimination and development.The multifunctional panel on the back with cross runner,switch button,finger buttons,etc.Is very useful for developing baby's fine motor skills and hand-eye coordination. [4-in-1 All-Round Development] 4 detachable toys, fully meet the baby's growth needs. Fish and elephants rotable and creaking, bear and chick rattle. [Adjustable Height] The non-slip and adjustable handle is a flexible adjustment that can be personalized to your baby's height. Includes a triangular structure to make baby's stride safe. The scientific ergonomic design allows babies to learn to walk in a correct and safe manner while helping to support their sensitive knees. [Safe Material for babies] 2 in 1 baby gym is made of high quality material with smooth edges. The keyboard and pads can be easily disassembled and the assembly process is very easy from the fitness frame to the walker to meet the needs of babies in different stages. It is a great choice for babies.