Tune's 0.3 gram Pulsar spoke magnet is manufactured from a highly magnetic rare earth metal. Using such material allows the magnet to be made extremely small and light. Also, its highly magnetic properties allow it to be placed further from your computer sensor, so there are more options available as to sensor placement. The cylindrical magnet has a concave side for round spokes, and a flat side for bladed spokes. It can be attached to a spoke with any high-strength adhesive.
Included is a small match box as packaging for the Pulsar.