Titanium Energy Magnetic Stone Insert Couple Bracelet Anti-fatigue and Anti-Radiation Therapy Bracelet Materials: Titanium Steel 100% Nickel Free, Hypoallergenic,Anti-fatigue, Light and Comfortable to Wear Size:around 7.8in for female, and 8.5 in for male (see more size details in the picture) They can sell separately or in a pair as you like Packaged with Gift Box Delivery Time: Standard:10~15 business days Expedited:3~5 business days