Picasso Tiles Magnetic Marble Run Set Dive into an engineering exploration with PicassoTiles' 100-piece marble run maze building block set Colorful and vibrant marbles. Easy-to-connect pieces and durable construction. Versatile design compatible with other full-sized PicassoTiles magnet tile building block toys for expanding creative possibilities. Brand new unopened box. Note: Box weighs just over 4lbs Make me an offer. Save more by bundling!