Upgrade 299 PCS Construction-Themed Race Track Toys - Our construction engineering toys includes 250 PCS flexible track components, 1 U-shaped rotation track, 2 race cars, 4 mini construction truck, 8 traffic signs, 2 trees, and a bridge. Advanced configuration for your little kids to build their own construction kingdom! More Accessory, More Ways to Play - Race car can cross the bridge, and the track pieces can be flexed, snapped to form various different track shapes, when the car enters the U-shaped track, it will flip automatically, adding more fun to race track toys. Each truck has move able working arms. Children can pretend to do all kinds of construction jobs with these trucks and will spend hours working on creative and imaginative play. Create Your Own Road - Using the U-shaped track, Y-shaped track, the arc tracks, and the bridge, this STEM construction toys 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. 6 Different Types of Construction Trucks - We have configured 6 simulation engineering cars with unique designs and functions. Includes haul truck, excavator, road roller, cement truck, and 2 racing cars. Toys gifts for 3 4 5 year old boys toys. Toys Gifts For 3 4 5 Years Old Boys Girls - Our race tracks toys set made of toxic-free materials, BPA-free, safety always comes first. Each construction track is in a unique design fit in kids' hands, portable to carry in the pocket to play everywhere. iHaHa 299 PCS Construction Race Tracks Boys Toys, 6 PCS Engineering Cars and Flexible Race Track Playset Create A Engineering Road Gifts Toys For 3 4 5 6 Year Old Boys Girls Kids