Silicone Sport Wrist Strap for POLAR M400 / M430 (Black)

1. FLEXIBLE - It is a much more supple/soft/flexible/rubbery M400 / M430 bands making your watch fit better.It prevents skin from irritation soft lightweight and durable very comfortable to wear. 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.