8 x Headset Spacer: 4 x red & 4 x blackOur headset spacer is made of high-quality aluminum alloy material, sturdy and durable e. They are lightweight and easy to install, having smooth surface and exquisite workmanship. 4 different sizes into one pack could fit for your demand and meet different needs. They are suitable for 28.6mm bicycle front stem fork.Made of high-quality aluminum alloy material, eco-friendly, sturdy and durable e. Lightweight and easy to install, having advantages of smooth surface and exquisite workmanship. Perfectly suitable for 28.6mm front stem fork of mountain bike, road bike etc. 4 different size(5mm/10mm/15mm/20mm) into on pack, they could fit for your demand and meet different needs.Specifications:Material: Aluminum alloyColor: red/black4Pcs Size(Height): Approx. 5m/10mm/15mm/20mmSuitable for: 28.6mm Bicycle Front Stem ForkPackage Included:8 x Headset SpacerOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.