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 131mm+44mm+97mm. 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 + Music/Runner 2 Music, compatible with TomTom Runner 3/Runner 3 Cardio/Runner 3 Cardio + Music/Runner 3 Music, compatible with TomTom Spark/Spark Cardio/Spark Cardio + Music/Spark Music/Spark 3/Spark 3 Cardio/Spark 3 Cardio + 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 + Music/Runner 2 Music, Compatible with TomTom Runner 3/Runner 3 Cardio/Runner 3 Cardio + Music/Runner 3 Music, Compatible with TomTom Spark/Spark Cardio/Spark Cardio + Music/Spark Music/Spark 3/Spark 3 Cardio/Spark 3 Cardio + Music/Spark 3 Music Size Details: Length: 13.1cm+4.4cm+9.7cm/5.16"+1.73"+3.82"(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)