Size: S 16cm, M 18cm, L 20cm
Color: Forest, Ocean, Desert, Black, Blue, Yellow Green
Magnet: 3pcs 100mT (1000 Gauss) Ferrite permanent-magnet in Alternating North-South Polarity Orientation.
Remarks: *Recommend to buy the bigger size when you cannot decide the size. *Recommend to wear at your arms, not at your wrist. (This products are not made for wearing at wrist or ankle.)