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Amazon.com : POLAR T31 Replacement Elastic Strap (X-Small), Black : Heart Rate Monitors : Sports & Outdoors
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Polar T-31 Trasmettitore di Frequenza Cardiaca Codificata, Size M, Nero : Amazon.it: Sport e tempo libero
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Polar Soft Strap M-XXL, Fascia Toracica Compatibile con Tutti I Sensori HR Tranne T31 E T61 Unisex Adulto, Nero : Amazon.it: Sport e tempo libero
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