1.Wrist size: 38mm 40mm 41mm fits 5.3"-8.2" (135mm-210mm) wrists; 42mm 44mm 45mm 49mm fits 5.5"-8.6" (140mm-220mm) wrist. 2.Strong Magnetic and Adjustable: The strong magnetic buckle closure design makes your apple watch band more flexible to adjust the length, easy to put on and take off, and effectively avoid the iwatch band from falling off and loosening.
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