PicassoTiles PicassoToys continues to be the market leader be the first to introduce the combo 2-in-1 set value pack to get double the fun from the popular marble run and race track series after being the first to introduce each of the model to the market. Made by parents – we develop all of our play sets with meticulous and superior attention to detail. We know how to capture a childs imagination and how to keep them focused while providing high entertaining and educational value.Scalable and expandable in both the marble run and race track to build and upscale the sim city. The race track and marble run set is expandable to build as big as desired by adding more pieces to the existing set. The 2-in-1 combo set can be integrated with other PicassoTiles PicassoToys building block toys such as people or animal action character figures, vehicles, airplane, Ferris wheel, windmill, castle, click-ins, numbers, alphabets, race tracks expansion packs to create infinite designs.Never gets old – grows with the children to challenge themselves for more complex builds as they progress. Going above and beyond traditional toys, this interactive playset is a popular STEM / STEAM educational kids toy for boys and girls alike, at all learning levels age 3 and up. Fun and entertaining, its ideal for preschool, pretend play, group activity, classroom teamwork, kindergarten, first grader and more. Made of NON-TOXIC, BPA-FREE, LEAD-FREE materials for safety and quality.Attention grabber to keep the kids focused on this none digital STEM / STEAM toy. Our creative and educational toys promote less screen time and encourage actual play to protect childrens developing eyes from digital screens. Building and learning toys help reduce the time spent with electronic devices such as TV, gaming, smartphones and tablets. Constructing the race track and marble run set enhances childrens engineering, architectural, creativity, and motor skills while playing.In The Box:2 x Staircase Marble Run Slopes32 x Magnetic Square Track Tiles10 x Straight Slides8 x U-Turn Slides6 x Quarter Round Turns4 x Rectangular Race Track Tiles4 x Race Track Slopes6 x Square Race Track Tiles1 x Centripetal Funnels4 x Marble Run Slopes4 x Marble Run Long Straight Slides/Supporting Columns4 x Steel-Weighted Marbles6 x Quarter Round Race Tracks15 x Race Track Supporting Columns2 x Race Cars 2 x AA battery per car is required and NOT included