Pastel green ceramic button is sleek, smooth and shiny ceramic. The fronts have a more rounded edge; the backs are flatter.  The long dimension is slightly larger than 3/4".  19mm x 14.5mm x 3mm thick. Hole size is 2mm.  Sold per pack of 10 buttons for $4.00.  They are quite consistent, good quality.  We are hoping to find more colors in these but at this point we only have this color.