My family, Fan Xiao, has been doing early education with small steps at home since she was born, and playing with the teaching AIDS required for small step courses. Whether it is a building block or a training ball, I feel that the face value is very high and the material is good. That black and white training ball has been played for more than a year, and there is no deformation. After washing, it is still as good as new. I'm still thinking about leaving it to Bauer to play in the future.