No more tarnished jewellery lying on your bedside table, invest in our anti-tarnish bags to give your jewellery the best protection it can get! Intercept Technology‚Ñ¢ polymers are non-toxic, non-abrasive, and environmentally friendly. Intercept‚Ñ¢ does not emit any chemicals or oils and will not leave deposits on the items it protects. Intercept Technology‚Ñ¢ products will not harm any object it comes in contact with. Precious metals and gemstones as soft as opals, emeralds, and amber are safe when in contact with these bags. they work by absorbing tarnish causing gases, and second, they react with and permanently neutralize those corrosive gases which stops jewellery from tarnishing. This dual form of protection eliminates the two elements needed to form atmospheric corrosion. This set is 6x6 inch pack of 3 and each bag will last you up to 10 years!