2. ADJUTABLE - Adjustable replacement strap band for Polar M400 / M430 Bands,have plenty of spots for size adjustment.A good replacement for your old and broken strap.
3. SIZE -Free size fits most wrists, have plenty of spots for size adjustment.
4. COLORFUL - Delighted varied color personalize your wristband to fits your mood and outfits in daily life with this brand new color choices.
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