Watchband Width : 38/40/41mm，42/44/45mm，49mm,46MM （170mm）. Magnetic Sports Band for Apple Watch Ultra 3/2/1 49mm 46MM 45mm 44 42mm 38 40 41mm Silicone Strap for iWatch series 11 10 9 8 7 6 5 4 ultra. Watchband M aterial: Silicone.
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