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Garmin HRM-Pro™ Premium Heart-rate Monitor with Dual Transmission and Running Dynamics, Black : Amazon.co.uk: Sports & Outdoors
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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 : Amazon.co.uk: Sports & Outdoors
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