Gyroll bodyboarding leashes are designed by bodyboard great, Mike Stewart. Gyroll bicep and wrist leashes use a smaller, and more taught, coil in order to keep it out of the riders way when travelling on the wave. Keeping this cord taught at all times also means your board is right by your side whenever you wipe out or fall of the wave. The Gyroll bicep and wrist leashes are amongst bodyboardings most durable leashes as for their double stainless steel connection which stops them from snapping and also allows them to react in the water to the---- large variety of manoeuvres and situations we as bodyboarders find ourselves in. Really, if it's good enough for the great Mike Stewart, it's more than likely good enough for you.