Really useful both in the workshop and in the paddocks this little case contains 310 aluminium gaskets with varying sizes : from 6 to 30 mm diameters with different thicknesses DIN 93 type. To help you cover all eventualities ! Box contents (int. diam. x out. diam. x thick.) : 30 x aluminium gasket : 6 x 10 x 1.2 mm 30 x aluminium gasket : 8 x 14 x 1.2 mm 30 x aluminium gasket : 10 x 16 x 1.2 mm 30 x aluminium gasket : 12 x 18 x 1.2 mm 30 x aluminium gasket : 14 x 20 x 1.5 mm 30 x aluminium gasket : 16 x 22 x 1.5 mm 30 x aluminium gasket : 18 x 24 x 1.5 mm 20 x aluminium gasket : 20 x 28 x 1.5 mm 20 x aluminium gasket : 22 x 30 x 1.5 mm 20 x aluminium gasket : 24 x 32 x 1.5 mm 20 x aluminium gasket : 27 x 34 x 1.5 mm 20 x aluminium gasket : 30 x 38 x 1.5 mm