- 80mT Magnet Type (S-151, S-101)
Magnets alternate north/south poles. Two sizes are offered.

- 230mT High Strength Magnet Type (S-152, S-102)
North pole faces inside and south pole outside.

- Stainless Steel
S-151, S-152:15cm wide with 60-88cm
circumference(19-28cm dia.) for larger wrists.
S-101, S-102:10cm wide with 57-85cm
circumference(18-27cm dia.) for smaller wrists.