Shine Rite Anti-Tarnish Bags. With Corrosion Protected Zip. 4 x 6 Inches. 50 Bags. These self zipping bags are ideal for protecting your jewelry from tarnishing. Each bag has been specially treated, they are non-abrasive, non-toxic, and enviromentally-friendly. Treated side of bag is opaque, while front of bag is clear. When the bag is ready to be changed you will notice the copper side will turn black. Bags will protect for up to 3 years after opened, unopened bags can be stored for up to 5 years. Make sure your jewelry or metal pieces are clean, dry and fingerprint free before placing in bag. To preserve the life of your bag be sure to store indoors and away from direct sunlight. Quantity: Each lot consists of 50 bags, whose storage capacity measures 4 x 6 inches (doesn't include area 'outside' of seal).