Features: There are 2 types, colored & 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 creative and imaginative 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 time, make time for healthy hands-on play. Made of toxic-free materials, safety always comes first. Each construction track is in a unique design and perfectly fit in kids' hands, portable to carry in the pocket to play everywhere. Package Includes: 73 Pieces Track Set Toy Specifications: Material: Plastic Dimension: 38x24x5.5cm/ 14.96x9.44x2.16 in 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.