This probably wins the award for most pointless accessory. Well, maybe just behind the banana holder.
This rolls up and wraps around your bike frame once you’re done with riding through puddles. Though why you’d want to roll your mudguard around your crossbar, we’re not sure.
It’s a bit like those bracelets you had in school which could snap open and then slap round your wrist (which in hindsight were just as pointless).