Product details:

hris King Headset Spacer Kit - 1 1/8" (4 spacers 3-46mm extension mix and max) Without headset spacers, you will struggle to find that perfect cockpit setup. A set of Chris King headset spacers are simple, yet beautifully made to match the colour of your headset perfectly. They allow you to fine-tune your stem height to ensure a perfect fit for long miles in the saddle. Features Precision headset spacers. For 1 1/8" Headsets. Kit includes 1 x 3mm, 1 x 6mm, 1 x 12mm, and 1 x 25mm.