A. Buckle design Special design: It is suitable for models SS014993000/SS013331000/SS018816000/SS013337000 of the Suunto Core series. It may not be suitable for other models. There are also more custom - printed watchbands to show your personality. B. Excellent wearing experience: It is made of thermoplastic elastomer (TPE) material, with moderate hardness, comfortable and durable. C. Size: There are 13 holes to adjust the size, which is suitable for wrist circumferences from 6.69 inches to 9.05 inches. It is recommended that you measure your wrist circumference before purchasing. D. What you will get: 1 set of watchband, 2 tool pins, 4 connectors. Note: The watch is not included. E. After - sales service: If you have any questions about our products and services, please contact us at any time. In case of any quality problems, replacement or full refund can be arranged.