Make up to a dozen fun mosaic pictures using these colourful foam tiles. Simply tile by number and match the colour of tile to its number on the picture. Then peel the backing off the tiles and stick on the picture to create your mosaic pictures with no glue required. Each picture measures 25 x 18cm. Contents: 20x foam sheets; over 7,500 self-adhesive 6mm tiles; 12x tile by number colour pictures; guide.