[Multiple sensory enlightenment, play middle school] Colorful piano keys/foot-step trigger sound effects nursery rhymes to stimulate hearing; 4 bears 3D flower toys shape recognition, exercise color cognition and graphics matching, and hand-eye coordination and synchronous improvement. [Five-in-one function, applicable in all stages] Piano fitness stand cognitive toys integrated: kick the legs to exercise the limbs/core, and the mat supports "belly time" to strengthen the strength of the neck and back, and the development is fully covered by 0-36 months. [Safe and skin-friendly material] Thickened cotton fabric, delicate, soft and non-irritating, smooth edges anti-slip bottom, passed 3C certification, protecting the baby's delicate skin and exploring safety. [Liberate your hands & save space] Detachable toy foldable design, portable storage; one unit can accommodate multiple pieces, meet the needs of music, sports, and learning, and say goodbye to toy stacking. [Intelligent Parenting Gift] The first choice for newborns/year-olds, integrating early education and fun interaction, is a worry-free choice for modern parents, helping the baby develop multi-dimensional hearing, vision and physical fitness.