This pack comprises of four 1 kilo packs & 2 mild steel packs of welding electrodes. Cast-iron electrodes Ci- 200 x 2.5 mm & 3.2 mm Dissimilar electrodes AS -315 x2.5mm & 3.2mm Mild steel 6013 electrodes MS-100 x 2.5 mm x 4.1 kilos Mild steel 6013 electrodes MS-100 x 3.2mm x 6 kilos All the above are CE approved.