2T Titanium: 3/8 inch wide - Titanium, symbol Ti, silver-white metallic element used principally to make light, strong alloys. Titanium is one of the transition elements of the periodic table (see Periodic Law). The atomic number of titanium is 22. Titanium is stronger than gold or platinum and is three times stronger than steel. Titanium doesn't irritate the skin. Even 18 karat gold can irritate sensitive skin. Titanium is completely inert, not alloyed with anything such as copper or nickel, which are found in karat gold (9, 14, 18, and 22 karat). It is used widely in the medical field to replace heart valves, hips, and other body parts. Titanium was discovered in 1791 in the mineral menachanite by the British clergyman William Gregor, who named the new element menachite. Four years later, the German chemist Martin Heinrich Klaproth rediscovered the element in the mineral rutile and named it titanium in allusion to the strength of the mythological Greek Titans. The metal was isolated in 1910. Titanium will not irritate or discolor your skin and will not harm the body in any way. Titanium is used in the medical and dental fields in surgical implants, bone screws, hip replacements, heart valves and more. Titanium magnetic bracelets are superior in durability to precious metals such as gold, silver and platinum (as you might guess from its uses in the aerospace and medical fields). A Titanium magnetic bracelet may long outlive the wearer. The "Magic Metal" is onsale@AceMagnetics.com. Know someone who prefers or needs a featherweight magnetic link bracelet with permanent 3300 gauss, unipole, north facing, and neodymium magnets? How many magnets per bracelet you ask?? Small = 14 or 46,200 gauss, medium = 15 magnets or 49,500 gauss, large = 16 magnets or 52,800 gauss. Be good to yourself you deserve it!! Sizing: Small (6 3/4), Medium (7 1/2) and Large (8) inches. Simply measure your wrist and get the next larger size closest to your wrist size. For example if your wrist is 5 1/2 - 6 5/8" get the small, wrist size 6 3/4 - 7 3/8" get the 7 1/2, wrist is 7 1/2 - 7 7/8" get the 8 inch.