silver
Silver is tarnished by wool and the process is accelerated by humidity [the conditions found in most kilt socks!]. Use a standard jewelers cloth to restore the shine.

horn
Horn will be damaged by dropping or scratching. Avoid extremes of temperature and humidity - which will cause the horn to shrink or expand and lead to cracking. The natural shine can be restored [and some small scratched removed] by poishing with a jeweler's cloth. 

wood
Wood is a natural product that will slowly adjust its moisture content to its surroundings. Avoid extremes of temperature [such as leaving it in the sun or on top of a heater] and exposure to excessive water. Keep the wood looking good by occasionally waxing with wood wax [found in most DIY stores].

stainess steel
Our stainless blades are low in maintenance although all steel will eventually tarnish after exposure to water, acid and salt [all found in a sweaty sock]. Keep your blade dry. Real Sgian Dubhs can be used for real cutting but this will cause marking of the polished surface. If you want to keep a smooth shine then avoid heavy cutting. Your sgian dubh comes with a real edge, which you can sharpen using any normal sharpening stone or steel.

damascus steel
The pattern in Damascus blades is caused by oxidising. This is the same process as rusting - so your blade may rust over time. The best way to remove this is with Dremel Polishing Compound [421], available for a couple of pounds on ebay. Use a thin coat of vaseline to show up the pattern nicely and give some protection from rusting.