This is a pack of flat-tile 2x2 Lego pieces in a grey colour. They are Lego tiles that can be used in a variety of different ways. These tiles can be pieced together to create roofs, floors, and pavements in a city construction, or they can be used to create mosaic artworks. These Lego pieces are compatible with any other Lego kits, such as the Star Wars, hospital, or Bat Man scenes.