DescriptionThe item is a set of 5pcs professional and practical bike headset stem spacer washers in different thickness, which are mainly made of durable carbon fiber material. It is one way to lighten up your bike and get that technical carbon look is to replace your metal spacers with these super light carbon fiber spacers.Features- Color: Black. - Material: Carbon fiber. - Size: 3.3X3.3X0.9CM/1.30X1.30X0.35in, 3.3X3.3X0.45CM/1.30X1.30X0.18in, 3.3X3.3X0.25CM/1.30X1.30X0.098in - Made of materials, durable and practical. - Carbon fiber material is more heat-resistant and wear-resistant, prolonging service life. - Three different thickness to meet your different needs. - for adjusting your handlebar to fit your riding style. - It is perfect to get a good fit on your bike.