Frozen spoke nipples are among the most aggravating bridges to cross when doing wheel maintenance. In the instance that yours happen to freeze while laced to aero bladed spokes, you can reach for the Unior Flat Spoke Fixing Wrench, which fixes the spoke in place so it doesn't twist as you're trying to release the nipple. The tool is also very useful for stabilizing aero bladed or flat spokes during wheel building. Spokes of the following blade thickness can be accommodated by the wrench: 1mm, 1. 2mm, 1. 5mm, 1. 8mm, 2mm, and 2. 2mm.