Compatible with Apple Watch Band 38mm/40mm/41mm Series 7/SE/6/5/4/3/2/1.,44/40/42mm size band fits 140â€“220mm (5.51-8.66 inch) wrists. ã€Designedã€‘- Upgrade magnetic leather loop band, Unique wearable system that allows to wear your band in seconds,no more fiddling around with buckles and clasps.,Enhanced magnets constitute powerful magnetic closure system tightly hold straps together,ensure the watch safe and securely on your wrist.,Few customers reflect that the magnetic is ‘weak’. That’s because the wearing way is wrong. Please flow the wearing instruction described in the second image. You will find that the magnetic is strong enough.