QUALITY MATERIALRugged nylon fiber surface and high strength Cr-Mo spindle is wear and corrosion resistance. | UNIVERSAL PEDALSCR-L for left; CR-R for right. Standard 9/16" spindle fits for most road mountain bikes. | ANTI-SKID CLIPS10 anti-skid nails on each side provide more secure on the pedals and hold your feet in place. |