COMFORTABLE : Free size fit your wrist depend on the button site you place.
PERFECT FIT FOR Mi BAND 3 AND BAND 4: Replacement Strap Only. Fits to Xiaomi Mi Band Version 3, 4 Fitness Tracker (Not included).
QUALITY : Replacement for lost or damaged Bands. Personalize your wristband to match your daily style with this color choices.
EXCLUSIVE : Replacement Rubber Bands with Clasps Only
FREE SIZE - It fits your wrist depend on button site you place. Comfortable for sporting time,look good no matter what you are wearing.