About Park Tool Metric Wrench Open End – 9/11MM (CBW-4)
Park Tool CBW wrenches are small, handy, nickel-plated wrenches designed for use on brakes, derailleurs, and any other component with small fasteners on a bicycle. Thin profile for ease of access to brakes and other hard-to-reach areas.

Features
9 mm and 11 mm open ends

Dimensions: 127 x 25 x 3.2 mm (5″x1″x0.1″)

About Park Tool
Park Tool are the world’s largest bicycle tool manufacturer. Located in St. Paul Minnesota they have been designing and manufacturing bicycle specific tools since 1963. Their dedication to quality and innovation have gained them the reputation for producing the best bicycle tools in the world.