Ideal for Gold, Silver, Brass, Copper, & Platinum Jewelry. 50 tabs in pack. SHINE RITE 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. To use, simply place a strip or tab near polished metal in an enclosed area, such as jewelry cases, storage bags or boxes, china cabinets, silverware chests, musical instrument cases or trophy cases." The Tarni-Shield (TM) strips and tabs have approximately 2 years shelf life after being put into service (In service is when the end customer starts using the product out of the original packaging or bags).