Millefiori is Italian for 'thousands of flowers'. This is COE 104 glass, if you're interested in using them in your next fusing project. They're also cute enough to be used in any standard mosaic. They measure 5mm - 6mm in diameter. The slice thickness is fairly irregular, ranging from about 1mm thick to 5mm or 6mm thick, with most pieces hovering closer to 3mm - 4mm thick. Many slices are a bit slanted, as well, making each piece truly unique. The photos of the plate and the mosaic are examples of how these pieces can be used for your next project.