Best educational toy for children: Marble Racing Deluxe Set is made of environmentally friendly, odorless plastic material which is non-toxic, BPA free, no harmful substances. Includes various types of shapes. The Railway Race Coaster Set not only trains your child's graphic cognition, it also stimulates their spatial thinking and hand-eye coordination. Innovative ideas for your children to improve the ability to distinguish shapes and colors, enrich their creativity and imagination. Develops brain thinking ability Educational: All blocks with colorful shapes to improve your children's different thinking skills, problem solving skills, symbolic thinking and sense of color. Inspirational, recreational, educational, conventional toys. Not only for children, it is also ideal for building a positive relationship with your little ones in a fun environment