I have used the Jagwire brake pad tuner thingies for a few months now and can endorse them with confidence. They make it fast and easy to properly align the brake pad to the wheel. All you need is a 5 mm allen wrench and the plastic tuners. The job is completed with proper toe-in and perfect pad to rim alignment in a minute or two. Long gone are the days of aligning and realigning the pads to fit them correctly on the wheel. You put the yellow tuner on the rim, loosen the brake pad and adjust it accordingly. You get a perfect fit on the first try.