This same set is £18.60 at Amazon, so this is a bit of a bargain, even if you just want it for the exercise mat!
The 4Gamers Fit4Fun Mega Pack contains everything you need to maximise your effort, performance and results through increased comfort, grip and indeed self confidence whilst playing ANY fitness or Sports Game (Including Wii Fit and Wii Sports) on your Nintendo Wii.
Sports Wii Remote Battery Cover
Sports Wrist Strap
Sports Hair Band