Feature: Ideal for: Gold, Silver, Brass, Copper, & Platinum Jewelry Anti-tarnish products protect silver, nickel, copper, bronze, base, tin and gold! Protect your jewelry, flatware, serving pieces, musical instruments, trophies and other items from unsightly discoloration and tarnish. How to Use: 1# Place anti-tarnish strips in a box or bag with your components or finished jewelry and they will absorb damaging moisture and other atmospheric dangers. 2# They help to prevent tarnish and corrosion. They are safe for most metals such as silver, nickel, copper, bronze, brass, tin and gold. 3# It has no effect on the oxidized jewelry. It can only be used after cleaning your jewelry. Put one piece in a sealed bag. These strips have approximately 2 year shelf like after you start using them. If u often opened bags regularly, please change strips for 2 or 3 months. Item Type:Jewelry Anti-Tarnish Paper, Color: Black Size: 2.5 x 2.5 cm/1"x 1" Quantity: 10 Pcs. Note:1.Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes(without retail package): 10 Pcs x Anti-Tarnish Paper.