Description The SKS U Stay Clips are a replacement part for your mudguard stays on your Velo fenders. The U-stay clip allows stays to be mounted quickly and easily on the mudguard. Quick mounting Clean design with the SKS logo Suitable for stays with a diameter of 4.5 mm. Set of 5 pieces Compatible with the Velo 42, Velo 47 & Velo 55 mudguards