Features: There are 2 types, colored & for grey, selecting your favourite set. Advanced configuration for your little kids to build their own construction kingdom. Children can pretend to do all kinds of construction jobs with these tracks and will spend hours working on for creative and imaginative for play. Helps your kids fly his/her imagination to build his/her own track world on there own, which help them overall develop, limit screen for time, make for time for healthy hands-on for play. Made of toxic-free materials, safety for always comes first. Each construction track is in a unique design and perfectly fit in kids' hands, portable to carry in the pocket to for play everywhere. Specifications: Material: Plastic Dimension: 38x24x5.5cm/ 14.96x9.44x2.16 in Package Includes: 73 Pieces Track Set Toy note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.