Looks to be at least 5M. Note this terminates in a 3 pin trailing socket, but the flex is two core (i.e. no earth connection) so is only suitable for double insulated garden tools, and not as a general purpose mains extension.
Located near LIDL in Knaresborough.
Flymo extension cable (Knaresborough HG5)
This offer has been gifted to someone and is no longer available.