As far as I know, the shape of the cool dog early education machine comes from the IP image of cool dog music. First of all, the round fuselage without edges and corners is for children not to be injured when bumping; Secondly, the shell is made of environmentally-friendly reinforced materials, which should be resistant to falling and durable; Thirdly, the nose, ears and tail are all food-grade silicone, not only for the sake of good feel and easy grasping, but also for safety. After all, it is normal for children to bite. Finally, there is the problem of figure, which is for the convenience of holding, carrying or holding.