Package dimensions: 22x14x3cm. M4x12mm(25)M5x12mm(25) & 25mm(20) M6x12mm(10)& 25mm(10) M8x25mm (5) & 40mm(5) M10x 25mm(3) & 40mm(3). Head diameter: 6.5, 7.6, 9.3, 11.3 & 13.6mm. Carbon steel. Strong poly storage case, suitable for hanging. Subject to anti dumping duty when sold in to the EU