4pcs/set Aluminum Bike Headset Washer Mountain Bicycle Front Fork Washer Bike Stem Handlebar Spacers Rings Gasket
4 different size(5mm/10mm/15mm/20mm) into on pack. Made of high-quality aluminum alloy material, eco-friendly, sturdy and practical to use. It is easy to install and has advantages of smooth surface and exquisite workmanship. It's perfect for 28. 6mm fork for mountain bike, road bike, etc.