There are two sizes for you to choose, S and L.Made of high-quality silicone, it can prevent skin irritation and bring you the best wearing experienceIt comes in 7 popular colors, which provides a great choice for any occasion and makes your watch unique.The double buckle design ensures high stability and reliability and ideal for any intense exercise.Item Name: Watch StrapMaterial: SiliconeQuantity: 1PcCompatible Models: for Versa 3, for SenseFeatures: Waterproof, Durable, ReplacementSize: S: 10.1cm x 2.3cm x 0.3cm + 9.3cm x 2.3cm x 0.3cm/3.98" x 0.91" x 0.12" + 3.66" x 0.91" x 0.12"(Approx.)L: 13.2cm x 2.3cm x 0.3cm + 9.3cm x 2.3cm x 0.3cm/5.2" x 0.91" x 0.12" + 3.66" x 0.91" x 0.12"(Approx.)Notes:Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Watch Strap(Watch Not Included)