8T Titanium: 1/2 inch wide CP2 grade titanium in a woven design with our uniquely robust permanent, laser point, north facing, neodymium 3300 gauss magnets in every link. Brand new for 2005 - How many magnets per size you ask? Size med = 16, L = 17, XL = 18 or 52,800, 56,100 and 59,400 gauss per respective size. This style has alternating shiny polished and a textured ridge brushed line repeating pattern for a very classy look. Step out - step up - featherweight titanium can be worn 24/7 by those with any history of reacting to wearing metals. Titanium is used for medical implants because of its phenomenal properties. Treat yourself good in the New Year - go with high end titanium!!