Park Tool, SW-13, Spoke Wrench, For Mavic wheels, 6 splines/5.65mm and 6 splines/9mm – Wheel Building Parts
SW-12 Double-Ended Spoke Wrench — Mavic® 7-Spline | Park Tool
These spoke wrenches allow the nipple to be turned even when using a spoke holder down by the nipple to avoid spoke twist, but there isn't one that matches the blue Park
Clé à rayons pour roues Mavic Park Tool SW-13 | Deporvillage