A long-used and well-proven pair of Sport-Roller Classic Panniers Pair is the classic Ortlieb model Made from durable PVC polyester that can withstand the rigors of travel and safely carry your gear from point A to point B. Convenient QL2 fastening system. 1 Quickly and easily attaches to racks with up to 16mm diameter tubing and comes with adapter inserts for 8mm diameter tubing , 10 mm and 12 mm. Detachable shoulder strap helps you carry the load when you need to leave your bike and 3M Scotchlite reflectors will improve your overall visibility when you are on the road after dark.