Black Bio Elements Health Care Bracelet made from Stainless steel With Magnet Negative ion Germanium Far infrared Features : - Magnet can improve the body's immune function, mainly used to relief dizziness, palpitation, insomnia, irritability and dreaminess. -Far infrared ray can promote the growth and health of living cells. It can be accelerate blood circulation, adjust blood pressure, improve arthralgia, adjust autonomic nerve, promote metabolism. -Negative ions can improves sleep quality, increase the oxygen content, and is beneficial to oxygen transmission, absorption, and utilization. -Germanium powder can shields the electromagnetic radiation in our daily life. Adjusts blood pressure, reduce fatigue. Specifications : Material : 316L Stainless Steel Length : 21.5CM Width : 1.27CM Colors: Black Health Energy Elements: Magnet/Far Infrared Ray/Negatives Ions/Germanium Powder Fuctions: Antifatigue&Radiation Protection And So On Gender: Women/Men/Unisex/Lovers Occasions: Birthday gift/anniversary/wedding/Party Note: Please allow manual measurement error of 0.1-0.3 cm