Add some color and style to your bike build with a Wolf Tooth Components 1-1/8" Headset Spacer Kit. Offered in multiple sizes, made proudly in Minneapolis, MN, and laser marked with the stack size on each end, find your perfect fit. Features: Designed and manufactured in Minneapolis, MN USA Fits 1-1/8"" steerers only Made from 6061-T6 Aluminum Specifications: S.H.I.S. Stem Clamp Diameter: 28.6mm (1-1/8") Material: Aluminum Includes: 3mm Spacer (1) 5mm Spacer (1) 10mm Spacer (1) 15mm Spacer (1)