Woodln Fitness Wireless Replacement Band Straps for Garmin Vivofit Tracker Activity (Violet) Smart Watch Strap for Garmin Vivofit Tracker! Free size that adjust by the button site according to your wrist. Comfortable for sport time, look good what matter you are wearing. All of the material is harmless to skin, environmental protection, no irritation Note: For Garmin Vivofit only! No Tracker, Replacement Bands Only!