The Ortlieb Roller City Pair gives city bikers greater flexibility. Even without being in the great outdoors, the Sport-Roller City gives city bikers greater flexibility. It can be used on both sides on front or rear racks or as single pannier. Highly incandescent 3M Scotchlite material reflectors on the panniers\\\' sides give increased safety in traffic. The affordable basics can be upgraded with numerous accessories. This model is provided with edge protectors having slots for fixing the ORTLIEB pannier carrying system. Key Features Waterproof bike pannier (pair) ideal as starter model Can be used individually or as pair as small rear pannier or for the lowrider Sides of PS490 nylon material, front and back of PD620 QL1 mounting system For racks with a diameter up to 16 mm, reduction pieces for 8 mm and 11 mm rack diameters included Top QL hooks and lower sliding hook adjustable with Allen key no. 3 Mounting not required; simply adjust QL hook distance with Allen key no.3 Symmetrical shape allows use on right or left side Highly reflective 3M Scotchlite reflector