The premium-quality Sprenger Ultra fit and Ultra fit Extra Grip Spurs are made of solid and break-proof stainless steel. To Keep them clean you just have to rinse them thoroughly with water and dry them afterwards.
If you use rowel spurs you should be aware that the rowel must be able to rotate freely. Please do not use spurs with tight rowels as they might cause injuries on your horse. In order to keep the rowel free you should regularly remove all kinds of dirt, for example remains of sand and sweat or hairs, especially during the change of coat.
German Silver spurs are also made of a solid and break-proof stainless metal. They are extremely long lasting but might lose their shiny appearance after some time of use. By polishing the spurs with the Sprenger Diamond Paste you can bring the sparkle back on the surface and make them look brand new.