Garmin HRM Strap Extender
32.5 cm extension: use this extender for Garmin HRM-Pro, HRM-Dual, HRM-Run, HRM-Swim, HRM-Tri, to get up to 12.8 inch strap length.
Garmin Unisex - Adult Heart Rate Chest Strap Extender - 12.8 Extender Strap, Fits Pro, Dual, Run, Swim, HRM-Tri.Total up to 56 Chest Strap Length
SWIM HEART RATE1 - Stores up to 20 hours of heart rate data during swims, then forwards it to a compatible device at the end of the session. It also
Garmin HRM-Swim Heart Rate Monitor
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