If you've worn out your plastic inserts on the top hooks of your QL2.1-equipped Ortlieb bag, good job! That means you're using your gear a lot. To freshen up that sweet mounting system, here are new inserts for three different rack tube diameters. Each set has 2 inserts to fit each of: 8mm, 10mm, and 12mm racks rails. Each set is enough to set up one Ortlieb pannier for any of these diameters.