Compatible with Watch Series 1, Series 2, Series 3, Watch Nike+, Edition, Watch Hermes,No watch included | The watch bands are made of pure silicone and flexible elastomeric. Durable and soft silicone material across your wrist, improves airflow and comfort, bring you a comfortable wearing experience | Band comes with Watch Lugs on both ends, which locks onto Watch Band Interface precisely and securely. Easy and direct installation and one button removal | There are two sizes for you to choose, 38MM S/M,38MM M/L,42MM S/M and 42MM M/L | 12-Month warranty. Unconditionally refund or resend with any quality problems, life-time friendly customer service