METAL CONTENT: All our designs are handcrafted the old fashioned way, starting from solid metal wires. We use no plating, no casting and no machine stamping, all industrial techniques that save time, but compromise meaning. - The Red metal is 99.99% Pure Copper, lead free, the purest available. Copper is one of the friendliest elements, it combines with many others. To find copper this pure in nature is many times more difficult than finding pure gold. - The Yellow metal is Jeweler's Brass, an alloy of 85% pure copper and 15% pure zinc, both essential minerals worn since prehistoric times by many non related cultures around the world. Science has already proven that copper is absorbed through the skin, so our bracelets can now be considered a time release source of needed minerals. - The White metal is German Silver, an alloy of 65% pure copper plus zinc, nickel and silver. Also used to make white gold. It is harder than Sterling and it got its name because, to have sharper knives, it was first used in the Kaiser's silverware. How are Handcrafted (annealed) Bracelets different than Machine Made? A stamping machine applies many tons of pressure on a sheet of copper to stamp a desired shape, intimately deforming the microscopic crystal lattice of the metal, making it rigid and brittle, more “rock like”. A craftsperson making the same pattern by hand will gradually work the copper to its final shape, taking the time to heat the metal repeatedly so the vibrating molecules can realign themselves and relieve the stress produced by the changes made. This carefully executed heating process is called “annealing”. The final result may look alike without a microscope, but it feels much different. Please adjust our bracelets on your wrist. Feel the difference for yourself! What size am I? S – Small Wrist width: Up to 2.25” For women of medium build and lighter M – Medium Wrist width: 2” to 2.5” For women of medium build and fuller. L – Large Wrist width: 2.25” to 2.75” For Men of medium build and lighter. X – Extra Large Wrist width: 2.5” and Up. For Men of medium build and fuller. Copper/Brass & Sterling Silver Bracelets "Notes & Quotes About The Health Benefits of Copper" Health Benefits of Copper: Cures for common ailments have been sought by man throughout the ages. He searched his environment for natural remedies, applying tinctures, poultices, taking teas, bathing in mineral waters, and mud. The use of metals for medicinal purposes is found throughout recorded history. One of the world's oldest texts, the Eber Papyrus, states, "Treat inflammation with pulverized copper". Pharmacies all over Europe sell copper bracelets for the inflammation of joints. The American Arthritis Foundation calls copper bracelets an "unproven remedy". Probably the most authoritative publication on the subject is Dr. Helmar Dollwet's book, The Copper Bracelet and Arthritis, 1981 Vantage Press. In it Dr. Dollwet explains that copper is an essential element of an enzyme necessary for the production and regeneration of the cartilage lining the bone surfaces. Copper (and zinc) he explains, are also essential to Super-oxide Dismutase (SOD) which cleans up superoxide radicals that can be destructive to human body tissues. Evidence has been found through scientific research as to the breakdown and absorption of copper compounds through the skin. Read The Copper Bracelet and Arthritis by Dr. Helmar Dollwet for more information on the benefits of wearing copper, and/or ask us for a synopsis of Sergio's scientific paper "Copper on Skin" first published in 1995 by the International Conference on New Science, Ft. Collins, CO. SERGIO LUBE®© BRACELETS Lifetime Guarantee: Our guarantee to repair or replace any Sergio Lub Sergio Lub®© bracelet which breaks under normal use, is unique to our industry. It is a testament to the pride and care that goes into each and every piece we create. For faster service, return a broken bracelet directly to Sergio Lub Jewelry: Sergio Lub Jewelry, 3800 Vista Oaks Dr. Martinez, CA 94553