Comfortable, vinyl dipped, double-ended spoke wrench for select Mavic wheels. Smaller end fits 7-spline nipples with a 6.4mm outside spline diameter. These are found on the R-sys wheels. The larger end fits the 6-splines of the 9mm OD of the threaded eyelets of the "FORE drilled rim adapters" found on rims such as the Mavic XM819, EX823 and Speedcity wheels (this is equal to the sizing of the Mavic "M40630" wrench).