The Kheo Coil Leash is the basic coil leash to stop your board getting away from you. If you didn't get one with your board then this is essential (and required at all board centres in the UK) if you don't ride with heelstraps.
Basic well made bit of kit that does the job. Fits all makes and models of boards and big enough to fit round thigh level.
Please Note: The Kheo leash has a designed weak line link which in the sake of a large force it will separate from the board. With a heavier mountainboard board then this may break easily but can be re-tied with a thicker cord/rope if you don't want to keep breaking the link.