Trion:Z LITE wristbands are loaded with negative ion producing minerals that are molded into the magnet housing. The wristband utilizes twin 1,000 Gauss magnets, arranged in a unique Alternating North-South Polarity Orientation (ANSPO) that increases the penetration of the magnetic field. Also included in the LITE Series are the CLC Collegiate wristbands - an amazing way to combine the power of negative ions, magnets and style for any sport or every day use. Available Sizes: Small 17 cm (6.8") :: Medium 19 cm (7.6") :: Large 21 cm (8.4")