These sealing rings are ideal for use with pipework in hydraulic and pneumatic systems, etc., where the soft metal of the sealing ring conforms to uneven surfaces to provide a good seal. * Material Aluminium * Diameter 11.5mm * Thickness 1mm * Supplied in packs of 100 https://elecena.pl/product/27171914/toolcraft-893842-aluminium-sealing-ring-11-5-x-1mm-pack-of-100 2024-11-07 https://elecena.pl/product/27171914/toolcraft-893842-aluminium-sealing-ring-11-5-x-1mm-pack-of-100 2025-01-02