Make sure your fine silver items stay shining bright by storing them with a Silver Storage Strip. The Strips absorb atmospheric pollutants and help keep your silver shining bright at all times. Silver jewelry tarnishes easily because it undergoes a chemical reaction with sulfur containing substances that are found readily in the air. When this happens, the silver combines with the sulfur to form silver sulfide that is black and darkens your silver jewelry. For the best results, store your silver with the strips in an enclosed space, and remember to replace the strips as often as possible. Insert into jewellery boxes, pouches, or grip-seal bags. 36 Strips, each strip is 4cm x 3cm (1.5" x 1.25").