You can match this band with any for Apple Watch Series 4 case of the same size. It also works with all previous versions of for Apple Watch, including Apple Watch Series 3. The 40mm band works with the 38mm case; the 44mm band works with the 42mm case. 40MM(38MM) S/M Size: Suitable for 5.1"-7.1" (130mm-180mm) wrist; 44MM(42MM) S/M Size: Suitable for 5.5"-7.5" (140mm-190mm) wrist; 40MM(38MM) M/L Size: Suitable for 5.9"-7.9" (150mm-200mm) wrist; 44MM(42MM) M/L Size: Suitable for 6.3"-8.3" (160mm-210mm) wrist. Package includes: 20 Pcs Siliconel Watchband Note:Product is One Button,Not Two Button , Please Leave us A Note What Size You Want (38/40/41mm or 42/44/45mm).
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