The watch strap is sweat-proof and adjustable, which gives you good wearing experience. The watch strap featured by fine workmanship is good replacement of the old or broken one. Made of high-quality silicone, the watch strap is soft and comfortable to wear. The length of the watch strap is 131mmand44mmand97mm. It is suitable for wrist circumference with sizes from 5.5inches to 8.7inches. The watch strap is compatible with TomTom Adventurer, compatible with TomTom Golfer 2, compatible with TomTom Runner 2/Runner 2 Cardio/Runner 2 Cardio and Music/Runner 2 Music, compatible with TomTom Runner 3/Runner 3 Cardio/Runner 3 Cardio and Music/Runner 3 Music, compatible with TomTom Spark/Spark Cardio/Spark Cardio and Music/Spark Music/Spark 3/Spark 3 Cardio/Spark 3 Cardio and Music/Spark 3 Music. Item Name: Watch Belt Material: Silicone Suitable Wrist Circumference: 5.5 Inches to 8.7 Inches Features: Breathable, Washable, Non-fading Applicable Model: 16mm: Compatible with TomTom Adventurer, Compatible with TomTom Golfer 2, Compatible with TomTom Runner 2/Runner 2 Cardio/Runner 2 Cardio and Music/Runner 2 Music, Compatible with TomTom Runner 3/Runner 3 Cardio/Runner 3 Cardio and Music/Runner 3 Music, Compatible with TomTom Spark/Spark Cardio/Spark Cardio and Music/Spark Music/Spark 3/Spark 3 Cardio/Spark 3 Cardio and Music/Spark 3 Music Size Details: Length: 13.1cmand4.4cmand9.7cm/5.16"and1.73"and3.82"(Approx.) Notes: Due to the light and the screen setting difference, the item's color may slightly differs from the pictures. Please allow slight dimension difference due to the manual measurement. Package Includes: 1 x Watch Belt(Smart Watch Not Included)