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Amazon.com : 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, Black, M : Sports &
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Amazon.com: Compatible with Garmin HRM-Pro/HRM-Tri/HRM-Run/HRM-Dual Heart Rate Monitor Silicone Waterproof Case with Carabiner : Sports & Outdoors
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Amazon.com : Garmin HRM-Dual Heart Rate Monitor - Premium & Real-Time Heart Rate Data via ANT & Bluetooth - Bundle with CR2032 Battery : Sports & Outdoors
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