The "Amsterdam Box L" from M-Wave can be mounted on all standard luggage racks thanks to the included brackets and will bring your expensive belongings safely to their destination. Their high-quality plastic construction even allows them to take the inevitable hits from bumpy bike paths. It protects against dust and splash water and with its dimensions of 42 x 26 x 21 cm (L x W x H) it holds approx. 17 l, which is enough to store smaller utensils or even the bicycle helmet including the removable lights in there. You can not only store your valuables there to save space, but you can also lock the bicycle case theft-proof with the supplied keys. Product features Volumen: 17 Liter Mounting: Fix holder Assembly: Rear Carrier Lockable: Yes Waterproof: Splash-proof Hight: 210mm Width: 260mm Length: 420mm Material Plastic Color black