YC-8A eight groove wrench. 10-15 G nipples
Its a hefty little tool. The last thing you want is damaging your spoke nipples, and this one ensures that you wont. Its heavy and built out of good quality metal. Has all the spoke sizes you'll ever need, and since similar sizes are on opposite sides, you dont need to fear using a bit bigger notch than what your spoke nipple requires.
Heavier than it looks, which is a pleasant surprise for such products. Does it what it intends to do. Though can buy it much cheaper locally.
Good tool. no confusion on size of spoke wrench required. Cost effective. A must have tool for tire maintenence.