Magene H803 Optical HRM Armband Bioracer Bearing specification:Inside diameter:10mm - Outside

Bearing specification:Inside diameter:10mm - Outside diameter:19mm - Width:5mm (JC6800-2RS)

A wide opening makes this bottle easy to clean

The anti-slip sheet at the tail of the gloves makes it easily wearable

Membrane: NEW NW® Total protectiont

Starting with a clean sheet of paper

Magene H803 Optical HRM Armband Bioracer Bearing specification:Inside diameter:10mm - OutsideProduct Description Magene H803 Optical Heart Rate Armband A New Accurate, Comfortable and Convenient Option for Exercise Magene H803 heart rate armband ensures you a safe exercise with super accurate real time heart rate monitor. With adjustable armband, you can exercise wherever you want. The considerable design makes you feel more comfortable and convenient. You can rest assured of exploring nature with this heart rate armband! Features: Accurate