M3/M4 Smart Fitness Band Replacement belt
- Special design for Xiaomi Mi Band 3 Smart Wristband
- Made of premium Silica gel, non-toxic and comfortable wear
- Compression molding, sturdy and durable
- The size can be adjusted according to the circumstance of individual wrist
- Fit wrist : 170-220mm/6.7-8.7 inches
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