This is a set of Bryton cadence sensor and heart rate sensor. It came with the Bryton 810 I purchased. Please note that a speed sensor is not included. The heart rate sensor is unused. The cadence sensor was used once for a short ride, but I removed it immediately because the position didn't fit my bike. It was used for a very short time, so I think it's in good condition, but please understand that it is a used item before purchasing. The rubber bands shown in the photos are also included.