Details • Size : 38mm, 40mm, 41mm • Band fits 130–200mm Wrists (Approximately) • Strap Compatible with Apple Watch Series • You can match most bands with any Apple Watch Series 3 or newer case of the same size. (The 41mm bands work with 38mm and 40mm cases; the 45mm bands work with 42mm and 44mm cases.) • Lead and Nickel Compliant