Stay grounded and calm with the Lava Stone Apple Watch Strap, featuring powerful stones that promote relaxation and emotional balance. A bold, earthy piece that brings strength, courage, and peace to your everyday style. Features Compatible with 38mm - 45mm Apple Watch face One Size Fits All: 6.0-10.5 inches; adjustable (Please note that this measurement includes the watch face.) Materials: Lava Stone, Alloy Handmade with Love and Carefully Manufactured UPC: 850039111983