1Constructed of aluminium alloy, through T6 hardened heat treatment, surface anodic oxidation coating, which is durable and exquisite workmanship 2Lightweight and easy to install and remove 32 different size and 3 colors fit for your demand, to meet different needs 4If you need to raise your handle bar, use these spacers 5Perfect to get a good fit on your bike 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 aluminium alloy spacers.Lightweight and easy to install. Great for you. Features: 1.Constructed of aluminium alloy, through T6 hardened heat treatment, surface anodic oxidation coating, which is durable and exquisite workmanship. 2. Lightweight and easy to install and remove. 3. 2 different size and 3 colors fit for your demand, to 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: Brand: RISK Material: 6061 Aluminium Alloy Color: Red, Black, Silver (optional) Diameter: approx. 3.4cm / 1.3" Height: approx. 5mm /0.2", 10mm / 0.4" (optional) Package Weight: approx. 14g(5mm), 27g(10mm) (optional) Quantity: 4pcs Suitable for front forks with an outer diameter of 28.6mm at the upper end Package Included: 4 x bike washers Note: 1.Please allow 1-3mm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please in kind prevail.