A nice idea to make your Ninja 250 to look like it have dual exhaust, but it is actually side box. The box is not large, but should be able to carry rain suit, extra shoes or handphone. It is stated that this is made from FRP that refers to Fibre-reinforced Plastic for that durability and strength.
Only available in Japan as far as I know.
via: Geng Ninja 250R Malaysia FB