The size is mostly 8mm round beads. Please check the photos for details. Only the rightmost column contains 12mm and 10mm cube beads. The second row from the left, the bottom one, is candy beads. Since these are made overseas, there may be chips or burrs. Please refrain from purchasing if you are looking for perfection. They will be shipped in a 13cm x 19cm case. The case is quite difficult to close, so we recommend transferring the beads.