Feature: 1. 1. Smart bracelet replacable strap compatible for tomtom. 2. 2. The strap is suitable for the wrist circumference of 5.5-8.7 inches. 3. 3. Compatibility: Compatible for TomTom Adventurer, Compatible for TomTom Golfer 2, Compatible for TomTom Runner 2, Compatible for TomTom Runner 2 Cardio, Compatible for TomTom Runner 2 Cardio + Music, Compatible for TomTom Runner 2 Music, Compatible for TomTom Runner 3, Compatible for TomTom Runner 3 Cardio, Compatible for TomTom Runner 3 Cardio + Music, Compatible for TomTom Runner 3 Music, Compatible for TomTom Spark, Compatible for TomTom Spark Cardio, Compatible for TomTom Spark Cardio + Music, Compatible for TomTom Spark Music, Compatible for TomTom Spark 3, Compatible for TomTom Spark 3 Cardio, Compatible for TomTom Spark 3 Cardio + Music, Compatible for TomTom Spark 3 Music. 4. 4. Easy to install, directly replace the strap without disassembly tools. Specification: Process: This product is made of silica gel, which is waterproof, sweatproof, comfortable and soft. The strap is thickened, which is comfortable to wear and easy to use. The material has no harm to human skin and is not allergic. Compatibility: Compatible for TomTom Adventurer Compatible for TomTom Golfer 2 Compatible for TomTom Runner 2 Compatible for TomTom Runner 2 Cardio Compatible for TomTom Runner 2 Cardio + Music Compatible for TomTom Runner 2 Music Compatible for TomTom Runner 3 Compatible for TomTom Runner 3 Cardio Compatible for TomTom Runner 3 Cardio + Music Compatible for TomTom Runner 3 Music Compatible for TomTom Spark Compatible for TomTom Spark Cardio Compatible for TomTom Spark Cardio + Music Compatible for TomTom Spark Music Compatible for TomTom Spark 3 Compatible for TomTom Spark 3 Cardio Compatible for TomTom Spark 3 Cardio + Music Compatible for TomTom Spark 3 Music Material: Silicone Package List: Note: Due to the different monitor and light effect,the actual color maybe a slight different from the picture color.Please allow 1-2cm differs due to manual measurement.