Magnetic Marble Run Building Blocks by PicassoTiles. The construction marble run race track toy stacking building block kit features quick-connect magnetized translucent color tiles to allow children to easily put the pieces together to create the designs of their own master piece simply via using the laws of physics, gravity, brainpower, imagination and power of magnets. Made of child-safe, non-toxic, BPA-free and lead-free CPC Child Product Certificate certified materials. Tested in CPSC accredited laboratory to ensure quality and safety.
Please note that sizes vary from manufacturer to manufacturer. Additional size charts are added as they become available.