The SpeedEZ quick-attachment system mounts in seconds without the use of tools. The Quick-adjusting corrosion-free stainless steel mounting hardware comes preinstalled. The fenders are created with Superflex™ unbreakable all-weather polycarbonate which is long-lasting.
700c: Fender is 45 mm wide; fits up to a 700x38 tire
26": Fender is 60 mm wide; fits up to a 26 x 2.0 tire
Very easy to install. I've only had them a short time but they seem to be very durable and more stable than I orginally expected. The only problem is that my 32mm Schwalbe tires are almost too wide. Unless you rims are perfectly true the tire will rub slightly agains the fender or hardware.