Description:If you need to raise your handle bar, use these spacers. One way to lighten up your bike is to replace your metal spacers with these super light 100% carbon fiber spacers. Constructed of full carbon fiber, exquisite workmanship. Lightweight and easy to install. Has 4 different size spacer to fit for your need. It is perfect to get a good fit on your bike.Features:1. Constructed of full carbon fiber, durable and exquisite workmanship.2. Lightweight and easy to install and remove.3. 4 different size fit for your demand, meet different needs.4.If you need to raise your handle bar, use these spacers.5. Perfect to get a good fit on your bike.Specifications:Material:Carbon FiberColor: BlackWeight:27g (4pcs)Diameter: approx. 3.4cm / 1.3"Size: 5mm, 10mm, 15mm, 20mm / 0.19", 0.39", 0.59", 0.78"Quantity: 4pcs (5mm, 10mm, 15mm, 20mm)Package Included:1 x 4pcs full carbon bike spacerNote:Please allow 1-3mm error due to manual measurement. Thanks for your understanding.