These rubber cushioned stainless steel P-clamps can be used to mount fenders on bikes that lack dropout eyelets. The 1/2" size fit most forks and the 3/8" fit most seat stays, but you might measure to be certain. The price is for one clamp. PCLMP$1.00size: 3/8"1/2" All images and text copyright Velo Orange, LLC 2006, 2007, 2008.